The download pdf link of Big Ideas Math Grade 1 Answer Key Chapter 3 More Addition and Subtraction Situations is available on this page. This pdf includes the fundamentals of addition and subtraction in multiple methods. Thus, the students who want to improve their math skills must solve the questions given in the Big Ideas Math Answers Grade 1 Ch 3 More Addition and Subtraction Situations.

## Big Ideas Math Book 1st Grade Answer Key Chapter 3 More Addition and Subtraction Situations

As per the studentâ€™s understanding level, only these Big Ideas Math Answers Grade 1 Chapter 3 More Addition and Subtraction Situations are designed and helping them to learn all primary mathematical concepts in a simple way. Learn the basic concepts of addition and subtraction from our Big Ideas Math Book 1st Grade Answers Chapter 3 More Addition and Subtraction Situations. Check out the topics covered in this chapter from the below section.

**Lesson 1: Solve Add To Problems with Start Unknown**

- Lesson 3.1 Solve Add To Problems with Start Unknown
- Solve Add To Problems with Start Unknown Practice 3.1

**Lesson 2: Solve Take From Problems with Change Unknown**

- Lesson 3.2 Solve Take From Problems with Change Unknown
- Solve Take From Problems with Change Unknown Practice 3.2

**Lesson 3: Solve Take From Problems with Start Unknown**

- Lesson 3.3 Solve Take From Problems with Start Unknown
- Solve Take From Problems with Start Unknown Practice 3.3

**Lesson 4: Compare Problems: Bigger Unknown**

**Lesson 5: Compare Problems: Smaller Unknown**

**Lesson 6: True or False Equations**

**Lesson 7: Find Numbers That Make 10**

**Lesson 8: Fact Families**

**Performance Task**

- More Addition and Subtraction Situations Performance Task
- More Addition and Subtraction Situations Chapter Practice
- More Addition and Subtraction Situations Cumulative Practice 1 – 3

### More Addition and Subtraction Situations Vocabulary

**Organize It**

Review Words:

count on

number line

Use the review words to complete the graphic organizer.

Answer:

**Define It**

Use your vocabulary cards to identify the words.

Answer:

### Lesson 3.1 Solve Add To Problems with Start Unknown

**Explore and Grow**

Use counters to model each problem.

Answer:

Explaination:

Given Sum is 5 and a addend of 2. So, to get the sum 5 we need to count 3 more from 2.

2 + 3 = 5.

Answer:

Explaination:

Given 5 as sum and an addend 2. To get the sum 5 we need to count 3 more from 2.

3 + 2 = 5

**Show and Grow**

Question 1.

_______ + 5 = 8

Answer:

3 + 5 = 8

Explaination:

Given: 8 as sum and an addend 5. To get the sum 8 we need to add 3 more to 5.

3 + 5 = 8

Question 2.

_______ + 2 = 8

Answer:

1 + 2 = 3

Explaination:

Given: 3 as sum and an addend 2. To get the sum 3 we need to add 1 more to 2.

1 + 2 = 3

**Apply and Grow: practice**

Question 3.

_________ + 3 = 7

Answer:

Explaination:

Given: 7 as sum and an addend 3. To get the sum 7 we need to add 4 more to 3.

4 + 3 = 7

Question 4.

_______ + 8 = 10

Answer:

Explaination:

Given: 10 as sum and an addend 8.Â We need to add 2 more to 8 to get 10 as sum.

2 + 8 = 10.

Question 5.

_______ + 4 = 9

Answer:

5 + 4 = 9

Explaination:

Given: 9 as sum and an addend 4. To get the sum 9 we need to add 5 more to 4.

5 + 4 = 9

Question 6.

_________ + 0 = 5

Answer:

5 + 0 = 5

Explaination:

Adding 0 to any number gives the sum as the number itself.

Given: 5 as sum and an addend 0.

so we add 5 to get the sum 5.

Question 7.

**MP Structure**

Circle the equation that matches the model.

8 + 2 = 10Â Â Â Â Â Â 2 + 6 = 8

2 + 2 = 4Â Â Â Â Â Â Â 4 + 6 = 10

Answer:

Explaination :

There are 2 counters in 1stÂ box and 6 counters in 2nd box.

Total number of boxes = 2

Add the number of boxes=

2 + 6 = 8.

**Think and Grow: Modeling Real Life**

There are some ladybugs. 2 more join them. Now there are 9. How many ladybugs were there to start?

Model:

Addition equation:

______ ladybugs.

Answer:

Addition equation: 7 + 2 = 9

There were 7 ladybugs at the start.

Explaination:

given

**Show and Grow**

Question 8.

You have some books. You get 4 more books. Now you have 10. How many books did you have to start?

Model:

Addition equation:

_________ books

Answer:

Addition equation: 6 + 4 = 10

I have to start with 6 books.

### Solve Add To Problems with Start Unknown Practice 3.1

Question 1.

________ + 5 = 10

Answer:

5 + 5 = 10

Question 2.

_________ + 1 = 4

Answer:

3 + 1 = 4

Question 3.

_________ + 2 = 7

Answer:

5 + 2 = 7

Question 4.

_________ + 3 = 9

Answer:

6 + 3 = 9

Question 5.

**MP Structure**

Circle the equations that match the model.

6 + 1 = 7Â Â Â Â Â Â Â Â Â Â Â 4 + 2 = 6

3 + 4 = 7Â Â Â Â Â Â Â Â Â Â Â 1 + 5 = 6

Answer:

Question 6.

**Modeling Real Life**

There are some hippos. 6 more join them. Now there are 9. How many hippos were there to start?

___________ hippos

Answer:

Total number of hippos = 9

Number of hippos joined = 6

Number of hippos at the start are 3

**Review & Refresh**

Question 7.

There are 8 on a free.

5 fall off.

How many are left?

________ – ________ = _________

Answer:

Number of leaf on the trees = 8

Number of fallen leafs = 5

Total number of leafs left on the tree=

8 – 5 = 3 leafs left.

Question 8.

You have 3 .

You lose 1 .

How many im – 19 do you have left?

________ – ________ = _________

Answer:

Number of balls i have = 3

Number of balls i lose = 1

Total number of left with me =

3 – 1 = 2 balls left.

### Lesson 3.2 Solve Take From Problems with Change Unknown

**Explore and Grow**

Use counters to model each problem.

Answer:

Answer:

**Show and Grow**

Question 1.

7 – _____ = 2

Answer:

7 – 5 = 2

Question 2.

5 – ______ = .3

Answer:

5 – 2 = 3

**Apply and Grow: Practice**

Question 3.

8 – ______ = 2

Answer:

8 – 6 = 2

Question 4.

9 – ______ = 6

Answer:

9 – 3 = 6

Question 5.

3 – _______ = 0

Answer:

3 – 3 = 0

Question 6.

10 – ________ = 5

Answer:

10 – 5 = 5

Question 7.

**MP Repeated Reasoning**

Match each model with its correct equation.

Answer:

Answer:

**Think and Grow: Modeling Real Life**

You have 9 coins. You toss some of them into a fountain. You have 5 left. How many coins did you toss?

Model:

Subtraction equation

________ coins.

Answer:

Total number of coins i have = 9 coins

Number of coins left with me = 5 coins

Number of coins i tossed in fountain = 9 – 5 = 4 coins

**Show and Grow**

Question 8.

You have 8 crayons. You lose some of them. You have 2 left. How many crayons did you lose?

Model:

Subtraction equation:

__________ crayons

Answer:

Total number of crayons = 8

Number of crayons left after loosing = 2

Number of crayons left = 8 – 2 = 6

### Solve Take From Problems with Change Unknown Practice 3.2

Question 1.

8 – ? = 4

8 – ______ = 4

Answer:

Question 2.

7 – ? = 3

7 – ______ = 3

Answer:

Question 3.

5 – _______ = 4

Answer:

5 – 1 = 4

Question 4.

6 – ______ = 6

Answer:

6 – 0 = 6

Question 5.

**MP Repeated Reasoning**

Match each model with its correct equation.

Answer:

Question 6.

Modeling Real Life

You have 10 toys. Your friend borrows some of them. You have 7 left. How many toys did your friend borrow?

________ toys

Answer:

Total number of toys = 10

Number of toys left after borrowing = 7

Number of toys my friend borrowed = 10 – 7 = 3 toys.

**Review & Refresh**

Question 7.

You have 6

You buy 3 more .

How many do you have now?

_______ + _______ = ______

Answer:

Number of banana’s i have = 6

Number of banana’s bought = 3

Total number of bananaâ€™s= 6 + 3 = 9 banana’s.

Question 8.

You have .

You buy 1 more .

How many do you have now?

_______ + _______ = ______

Answer:

number of bat i have =1

number of more bat i bought = 1

total number of bat i have = 1 + 1 = 2 bats.

### Lesson 3.3 Solve Take From Problems with Start Unknown

**Explore and Grow**

Use counters to model each problem.

3 + 4 = _______

_____ – 3 = 4

Answer:

3 + 4 = 7

7 – 3 = 4

**Show and Grow**

Question 1.

? – 2 = 4

Think 2 + 4 = _______.

So, ______ – 2 = 4

Answer:

Think 2 + 4 = 6.

So, 6 – 2 = 4

Question 2.

? – 1 = 1

Think 1 + 1 = _______.

So, ______ – 1 = 1

Answer:

Think 1 + 1 = 2.

So, 2 – 1 = 1.

**Apply and Grow: Practice**

Question 3.

? – 2 = 5

Think 2 + 5 = _______.

So, ______ – 2 = 5

Answer:

Think 2 + 5 = 7.

So, 7 – 2 = 5

Question 4.

? – 3 = 6

Think 3 + 6 = _______.

So, ______ – 3 = 6.

Answer:

Think 3 + 6 = 9.

So, 9 – 3 = 6.

Question 5.

? – 4 = 1

Think 4 + 1 = _______.

So, ______ – 4 = 1.

Answer:

Think 4 + 1 = 5.

So, 5 – 4 = 1.

Question 6.

? – 6 = 4

Think 6 + 4 = _______.

So, ______ – 6 = 4.

Answer:

Think 6 + 4 = 10.

So, 10 – 6 = 4.

Question 7.

**MP Structure**

Circle the equations that match the model.

8 – 2 = 6Â Â Â Â Â Â Â Â Â 8 + 2 = 10

6 – 2 = 4Â Â Â Â Â Â Â Â Â 2 + 6 = 8

Answer:

**Think and Grow: Modeling Real Life**

A group of students are at a playground. 2 of them leave. There are 8 left. How many students were there to start?

Model:

Subtraction equation:

__________ students

Answer:

Number of students leave = 2

Number of students remaining = 8

Total number of students = 8 + 2 = 10 students.

subtraction equation: 10 – 2 = 8.

**Show and Grow**

Question 8.

You have some strawberries. You eat 9 of them. You have 0 left. How many strawberries did you have to start?

Model:

Subtraction equation:

_________ strawberries

Answer:

Number of strawberries i ate = 9

Number of strawberries left after eating = 0

Total number of strawberries i had at the start = 9 + 0 = 9 strawberries.

Subtraction equation: 9 – 9 = 0.

### Solve Take From Problems with Start Unknown Practice 3.3

Question 1.

? – 7 = 2

Think 7 + 2 = _______.

So, ______ – 7 = 2.

Answer:

Think 7 + 2 = 9.

So, 9 – 7 = 2.

Question 2.

? – 2 = 8

Think 2 + 8 = _______.

So, ______ – 2 = 8.

Answer:

Think 2 + 8 = 10.

So, 10 – 2 = 8.

Question 3.

? – 3 = 0

Think 3 + 0 = _______.

So, ______ – 3 = 0.

Answer:

Think 3 + 0 = 3.

So, 3 – 3 = 0.

Question 4.

? – 2 = 0

Think 2 + 6 = _______.

So, ______ – 2 = 6.

Answer:

Think 2 + 6 = 8.

So, 8 – 2 = 6.

Question 5.

**MP Structure**

Circle the equations that match the model.

8 – 1 = 7 9 + 1 = 10

9 – 8 = 1 8 + 1 = 9

Answer:

Question 6.

**Modeling Real Life**

There are some people on a trolley. 4 of them exit. There are 4 people left. How many people were on the trolley to start?

__________ people

Answer:

Number of people who exit the trolley = 4

Number of people left on trolley = 4

Total number of people on the trolley = 4 + 4 = 8

**Review & Refresh**

Question 7.

There are 5 blue balloons and 3 red balloons. How many more blue balloons are there?

________ – _________ = ________ more blue balloons

Answer:

Given

Blue Balloons = 5

Red Balloons = 3

5 – 3 = 2 more blue balloons are there.

### Lesson 3.4 Compare Problems: Bigger Unknown

**Explore and Grow**

Use counters to model the story.

Newton has 5 balls. Descartes has 2 more balls than Newton. How many balls does Descartes have?

Answer:

Number of balls with newton = 5

Number of balls with Descartes = 5 + 2 = 7.

**Show and Grow**

Question 1.

Your friend has 7 trading cards. You have 3 more than your friend. How many trading cards do you have?

7 + _______ = _______ trading cards

Answer:

7 + 3 = 10 trading cards.

**Apply and Grow: Practice**

Question 2.

Your friend has I soccer ball. You have 2 more than your friend. How many soccer balls do you have?

1 + _______ = _______ soccer balls

Answer:

1 + 2 = 3 soccer balls

Question 3.

Your friend swims 4 more laps than you. You swim 3 laps. How many laps does your friend swim?

_______ + _______ = _______ laps

Answer:

Question 4.

**MP Precision**

Your friend catches 5 more fish than you. You catch 2 fish. How many fish does your friend catch? Circle the bar model that matches the problem.

Answer:

**Think and Grow: Modeling Real Life**

Your friend has 1 yellow flower and 2 red flowers. You have 3 more flowers than your friend. How many flowers do you have?

Model:

Addition equation:

________ flowers

Answer:

Model:

Addition equation: 3 + 3 = 6 flowers.

**Show and Grow**

Question 5.

Your friend has 6 gray shirts and 2 blue shirts. You have 2 more shirts than your friend. How many shirts do you have?

Model:

Addition equation:

_________ shirts

Answer:

Addition equation: 8 + 2 = 10 shirts

### Compare Problems: Bigger Unknown Practice 3.4

Question 1.

You have 3 key chains. Your friend has 5 more than you. How many key chains does your friend have?

3 + ______ = ______ key chains

Answer:

3 + 5 = 8 key chains

Question 2.

You have 8 more bracelets than your friend. Your friend has 2 bracelets. How many bracelets do you have?

_______ + ______ = ______ bracelets

Answer:

2 + 8 = 10 bracelets.

Question 3.

**MP Precision**

You have 1 seashell. Your friend has 8 more than you. How many seashells does your friend have? Circle the bar model that matches the problem.

Answer:

Question 4.

**Modeling Real Life**

Your friend has 2 comic books and 2 mystery books. You have 3 more books than your friend. How many books do you have?

_________ books

Answer:

4 + 3 = 7 books.

**Review & Refresh**

Question 5.

There are 2 blue crayons and 6 red crayons. How many fewer blue crayons are there?

_______ – ______ = _______ fewer blue crayons

Answer:

Number of red crayons = 6

Number of blue crayons = 2

Number of fewer blue crayons = 6 – 2 = 4 blue crayons.

### Lesson 3.5 Compare Problems: Smaller Unknown

**Explore and Grow**

Use counters to model the story.

Newton has 5 treats. Descartes has 2 fewer treats than Newton. How many treats does Descartes have?

Answer:

Number of treats with newton = 5

Number of treats with Descartes = 5 – 2 = 3.

**Show and Grow**

Question 1.

Your friend has 8 stones. You have I fewer than your friend. How many stones do you have?

_______ – _______ = ________ stones

_______ + _______ = ________ stones

Answer:

8 – 1 = 7 stones

7 + 1 = 8 stones

**Apply and Grow Practice**

Question 2.

You blow 5 bubbles. Your friend blows 2 fewer than you. How many bubbles does your friend blow?

_______ – _______ = ________ bubbles

_______ + _______ = ________ bubbles

Answer:

5 – 2 = 3 bubbles

3 + 2 = 5 bubbles.

Question 3.

You have 3 fewer oranges than your friend. Your friend has 9 oranges. How many oranges do you have?

_______ â—‹ ______ = _______ oranges

Answer:

9 – 3 = 6 oranges

Question 4.

**DIG DEEPER!**

Complete the bar model. Do both equations match the bar model?

Answer:

Both the equations matches.

**Think and Grow: Modeling Real Life**

Your friend has 2 blue markers and 7 yellow I markers. You have 5 fewer markers than your friend. How many markers do you have?

Model:

Equation:

_________ markers

Answer:

Equation: 9 – 5 = 4

I have 4 markers

**Show and Grow**

Question 5.

Your friend has 6 tennis balls and I baseball. You have 2 fewer balls than your friend. How many balls do you have?

Model:

Equation:

_________ balls

Answer:

Equation: 7 – 2 = 5

I have 5 balls

### Compare Problems: Smaller Unknown Practice 3.5

Question 1.

Your friend has 9 awards. You have 5 fewer than your friend. How many awards do you have?

______ – _____ = _____ awards

______ + _____ = _____ awards

Answer:

9 – 5 = 4 awards

4 + 5 = 9 awards

Question 2.

Your friend finds 2 fewer bugs than you. You find 4 bugs. How many bugs does your friend find?

_______ â—‹ ______ = _______ bugs

Answer:

4 – 2 = 2 bugs

My friend found 2 bugs.

Question 3.

**MP Reasoning**

Complete the bar model. Circle the equation that matches the bar model.

Answer:

Question 4.

**Modeling Real Life**

Your friend has 8 black cats and 2 orange cats. You have 7 fewer cats than your friend. How many cats do you have?

_______ cats

Answer:

Number of cats my friend have= 8 + 2 = 10 cats

Number of cats i have = 10 – 7 = 3

**Review & Refresh**

Question 5.

Write the numbers of shirts and shorts. Are the numbers equal? Circle the thumbs up for yes or the thumbs down for no.

Answer:

### Lesson 3.6 True or False Equations

**Explore and Grow**

Color the flowers that have a sum or difference of 6.

Answer:

**Show and Grow**

Is the equation true or false?

Question 1.

Answer:

Question 2.

Answer:

**Apply and Grow: Practice**

Is the equation true or false?

Question 3.

Answer:

Question 4.

Answer:

Question 5.

Answer:

10 – 4 = 6

6 – 0 = 6

Question 6.

Answer:

5- 2 = 3

7 – 4 = 3

Question 7.

Answer:

Question 8.

Answer:

Question 9.

**MP Number Sense**

Circle all of the equations that are true.

Answer:

**Think and Grow: Modeling Real Life**

You have 7 marbles. You lose 2 of them. Your friend has 4 marbles and finds 3 more. Do you and your friend have the same number of marbles?

Equation:

Answer:

Number of marbles I have = 7 – 2 = 5

Number of marbles my friend have = 4 + 3 = 7

Equation:

**Show and Grow**

Question 10.

You have I balloon. You blow up 3 more. Your friend has 5 balloons. I of your friendâ€™s balloons pops. Do you and your friend have the same number of balloons?

Equation:

Answer:

Number of balloons i have= 1 + 3 = 4

Number of balloons my friend have = 5 – 1 = 4

Equation:

### True or False Equations Practice 3.6

Is the equation true or false?

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

Question 5.

**MP Number Sense**

Circle all of the equations that are false.

Answer:

Question 6.

**Modeling Real Life**

You have 5 crayons. You find 3 more. Your friend has 7 crayons and finds I more. Do you and your friend have the same number of crayons?

Answer:

Number of crayons with me = 5 + 3 = 8

Number of crayons with my friend = 7 + 1 = 8

**Review & Refresh**

Question 7.

Circle the triangles.

Answer:

### Lesson 3.7 Find Numbers That Make 10

**Explore and Grow**

Place some red counters on the ten frame. Add yellow counters to fill the frame. Write an equation to match.

Answer:

**Show and Grow**

Question 1.

Answer:

Question 2.

Answer:

Question 3.

Answer:

Question 4.

Answer:

**Apply and Grow Practice**

Question 5.

4 + _____ = 10

Answer:

Question 6.

7 + _____ = 10

Answer:

Question 7.

1 + _____ = 10

Answer:

1 + 9 = 10

Question 8.

8 + _____ = 10

Answer:

8 + 2 = 10

Question 9.

_____ + 2 = 10

Answer:

8 + 2 = 10

Question 10.

_____ + 5 = 10

Answer:

5 + 5 = 10

Question 11.

_____ + 3 = 10

Answer:

7 + 3 = 10

Question 12.

_____ + 0 = 10

Answer:

10 + 0 = 10

Question 13.

**DIG DEEPER!**

Match the numbers that have a sum of 10.

Answer:

**Think and Grow: Modeling Real Life**

There are 7 jump ropes. Your teacher buys some more. Now there are 10. How many jump ropes did your teacher buy?

Model:

Addition equation:

________ jump ropes

Answer:

Number of jump ropes= 7

Teacher bought some ropes and total = 10

Number of ropes teacher brought = 10 – 7 = 3

Addition equation: 7 + 3 = 10

3 jump ropes.

**Show and Grow**

Question 14.

There are 2 penguins. Some more join them. Now there are 10. How many more penguins joined them?

Model:

Addition equation:

________ penguins

Answer:

Number of penguins at present= 2

Total number of penguins = 10

Number of penguins joined = 10 – 2 = 8

Addition equation: 2 + 8 = 10

8 penguins joined.

### Find Numbers That Make 10 Practice 3.7

Question 1.

8 + _______ = 10

Answer:

Question 2.

1 + _______ = 10

Answer:

Question 3.

10 + _______ = 10

Answer:

10 + 0 = 10

Question 4.

5 + _______ = 10

Answer:

5 + 5 = 10

Question 5.

_______ + 4 = 10

Answer:

6 + 4 = 10

Question 6.

_______ + 0 = 10

Answer:

10 + 0 = 10

Question 7.

**DIG DEEPER!**

Match the numbers that have a sum of 10.

Answer:

Question 8.

**Modeling Real Life**

You have 3 baseball cards. Your friend gives you some more. Now you have 10. How many baseball cards did your friend give you?

________ baseball cards

Answer:

Number of baseball cards with me= 3

Total number of baseball cards i have = 10

Number of baseball cards given by my friend = 10 -3 = 7 cards.

**Review & Refresh**

Find the sum. Then change the order of the addends. Write the new addition problem.

Question 9.

Answer:

Question 10.

Answer:

### Lesson 3.8 Fact Families

**Explore and Grow**

Use linking cubes to model the equations.

**Show and Grow**

Question 1.

Complete the fact family.

1 + 8 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – ______ = ______

______ + ______ = ______Â Â Â Â Â Â 9 – ______ = ______

Answer:

1 + 8 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 8 = 1

8 + 1 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 1 = 8

**Apply and Grow: Practice**

Complete the fact family.

Question 2.

4 + 2 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – ______ = ______

______ + ______ = ______Â Â Â Â Â Â Â Â 6 – ______ = ______

Answer:

4 + 2 = 6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – 2 = 4

2 + 4 = 6Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – 4 = 2

Question 3.

3 + 6 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ______ – 6 = 3

______ + ______ = ______Â Â Â Â Â Â Â Â Â Â ______ – ______ = ______

Answer:

3 + 6 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 6 = 3

6 + 3 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 3 = 6

Question 4.

7 + 1 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ______ – 7 = _______

______ + ______ = ______Â Â Â Â Â Â Â Â Â Â ______ – 1 = ______

Answer:

7 + 1 = 8Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8 – 7 = 1

1 + 7 = 8Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8 – 1 = 7

Question 5.

**DIG DEEPER!**

Cross out the equation that does not belong in the fact family.

5 + 3 = 8Â Â Â Â Â Â Â 5 – 3 = 2

3 + 5 = 8Â Â Â Â Â Â Â 8 – 5 = 3

Answer:

5 + 3 = 8

3 + 5 = 8Â Â Â Â Â Â Â 8 – 5 = 3

**Think and Grow: Modeling Real Life**

You have 3 puppets. Your friend has 7 puppets. How many fewer puppets do you have?

Model:

Equation:

________ fewer puppets

Answer:

Number of puppets i have = 3

Number of puppets my friend have = 7

Difference between puppets between me and my friend:

Equation: 7 – 3 = 4

I have 4 fewer puppets.

**Show and Grow**

Question 6.

There are 2 spoons and 8 forks. How many more forks are there?

Model:

Equation:

________ more forks

Answer:

Number of spoons = 2

Number of forks = 8

difference between spoons and folks:

Equation: 8 – 2 = 6

There are 6 more forks.

### Fact Families Practice 3.8

Question 1.

1 + 5 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – ______ = _______

______ + ______ = ______Â Â Â Â Â Â 6 – ______ = ______

Answer:

1 + 5 = 6Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – 5 = 1

5 + 1 = 6Â Â Â Â Â Â Â Â Â Â Â Â Â 6 – 1 = 5

Question 2.

3 + 7 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â ______ – 7 = 3

______ + ______ = ______Â Â Â Â Â Â ______ – _______ = ______

Answer:

3 + 7 = 10Â Â Â Â Â Â Â Â Â Â Â Â Â 10 – 7 = 3

7 + 3 = 10Â Â Â Â Â Â Â Â Â Â Â Â Â 10 – 3 = 7

Question 3.

Complete the fact family.

3 + 0 = ______Â Â Â Â Â Â Â Â Â Â Â Â Â Â ______ – 3 = _______

______ + ______ = ______Â Â Â Â Â Â Â ______ – 0 = ______

Answer:

3 + 0 = 3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3 – 3 = 0

0 + 3 = 3Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3 – 0 = 3

Question 4.

**DIG DEEPER!**

Cross out the equation that does not belong in the fact family.

6 + 4 = 10Â Â Â Â Â Â Â Â 10 – 6 = 4

4 + 6 = 10Â Â Â Â Â Â Â Â 6 – 4 = 2

Answer:

6 + 4 = 10Â Â Â Â Â Â Â Â 10 – 6 = 4

4 + 6 = 10

Question 5.

**Modeling Real Life**

There are 7 fish and 2 frogs. How many fewer frogs are there?

________ fewer frogs

Answer:

Number of fish = 7

Number of frogs = 2

Difference between frogs and fish = 7 – 2 = 5.

There are 5 fewer frogs.

**Review & Refresh**

Circle the objects that holds more.

Question 6.

Answer:

Question 7.

Answer:

### More Addition and Subtraction Situations Performance Task

Question 1.

You and your friend bake banana bread and raisin bread. You have 8 loaves of bread. 3 of them are raisin bread. Your friend has 10 loaves of bread. 6 of them are banana bread. How many more loaves of banana bread does your friend have than you?

_______ loaf

Answer:

Total number of bread loaves i have = 8.

Number of raisin breads i have = 3.

Number of banana breads i have = 8 – 3 = 5.

Total number of bread loaves my friend have = 10.

Number of banana bread my friend have = 6.

Difference between the banana breads is : 6 – 5 = 1.

My friend have 1 more loaves of banana bread than me.

Question 2.

You give away 3 loaves of banana bread and 3 loaves of raisin bread. Your friend gives away 1 more loaf of bread than you. How many loaves of bread does your friend give away?

_______ loaves

Answer:

Number of banana bread loaves i gave away = 3

Number of raisin bread loaves i gave away = 3

Total number of bread loaves i gave away = 3 + 3 = 6.

The number of bread loaf my friend gave away is 1 more then = 6 + 1 = 7.

My friend gave away 7 loaves of bread.

Question 3.

You and your friend make boxes of muffins. Does each box have the same number of muffins?

YesÂ Â Â Â Â Â Â No

Answer:

Number of muffins in the boxes i make = 3 + 7 = 10.

Number of muffins in the boxes my friend make = 5 + 4 = 9.

Difference between the muffins = 10 – 9 = 1

NOÂ the boxes does not have same number of muffins.

### More Addition and Subtraction Situations Chapter Practice

### Solve Add To Problems with Start Unknown Homework & Practice 3.1

Question 1.

? + 4 = 6

_______ + 4 = 6

Answer:

2 + 4 = 6

Question 2.

? + 2 = 8

_______ + 2 = 8

Answer:

6 + 2 = 8

### Solve Take From Problems with Change Unknown Homework & Practice 3.2

Question 3.

5 – ? = 4

5 – ______ = 4

Answer:

5 – 1 = 4

Question 4.

7 – ? = 7

7 – ______ = 7

Answer:

7 – 0 = 7

### Solve Take From Problems with Start Unknown Homework & Practice 3.3

Question 5.

? – 6 = 3

Think 6 + 3 = ______.

So, ______ – 6 = 3.

Answer:

Think 6 + 3 = 9.

So, 9 – 6 = 3.

Question 6.

? – 3 = 1

Think 3 + 1 = ______.

So, ______ – 3 = 1.

Answer:

Think 3 + 1 = 4.

So, 4 – 3 = 1.

Question 7.

**MP Structure**

Circle the equation that matches the model.

6 – 6 = 0 4 – 2 = 2 6 – 2 = 4

Answer:

### Compare Problems: Bigger Unknown Homework & Practice 3.4

Question 8.

Your friend has 3 stickers. You have 4 more than your friend. How many stickers do you have?

Answer:

### Compare Problems: Smaller Unknown Homework & Practice 3.5

Question 9.

Your friend has 5 stuffed animals. You have 2 fewer than your friend. How many stuffed animals do you have?

Answer:

Question 10.

Modeling Real Life Your friend has 4 dogs and 2 cots. You have I fewer pet than your friend. How many pets do you have?

Answer:

### True or False Homework & Practice 3.6

Is the equation true or false?

Question 11.

Answer:

Question 12.

Answer:

Question 13.

**MP Number Sense**

Circle all of the equations that are true.

Answer:

### Find the number That Make 10 Homework & Practice 3.7

Question 14.

3 + _______ = 10

Answer:

Question 15.

6 + _______ = 10

Answer:

### Fact Families Homework & Practice 3.8

Question 16.

Complete the fact family.

8 + 1 = _______Â Â Â Â Â Â Â Â Â Â Â Â Â ________ – 8 = 1

________ + _______ = _______Â Â Â _______ – _______ = ______

Answer:

8 + 1 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 8 = 1

1 + 8 = 9Â Â Â Â Â Â Â Â Â Â Â Â Â 9 – 1 = 8

Question 17.

**Modeling Real Life**

There are 2 slides and 6 swings on a playground. How many more swings are there?

__________ more swings

Answer:

Number of slides = 2

Number of swings = 6

Number of more swings = 6 – 2 = 4 more swings.

### More Addition and Subtraction Situations Cumulative Practice 1 – 3

Question 1.

Shade the circle next to the answer.

4 + 4 = ______

â—‹ 4

â—‹ 6

â—‹ 9

â—‹ 8

Answer:

Question 2.

Shade the circle next to the addition equation that you can use to solve 8 – 3.

â—‹ 8 + 3 = 11

â—‹ 3 + 5 = 8

â—‹ 1 + 8 = 9

â—‹ 5 + 2 = 7

Answer:

Question 3.

Circle the equation that matches the bar model.

Answer:

Question 4.

You take 10 pictures. Your friend takes 3 pictures. Shade the circle next to the equation that shows how many more pictures you take.

â—‹ 3 + 3 = 6

â—‹ 10 – 3 = 7

â—‹ 10 + 3 = 13

â—‹ 3 – 1 = 2

Answer:

Question 5.

Shade the circle next to the number that completes the addition equation.

________ + 7 = 9

â—‹ 1

â—‹ 2

â—‹ 3

â—‹ 4

Answer:

Question 6.

There are 6 .

3 more join them.

How many are there now?

_________ + __________ = _________

Answer:

Number of = 6

Total number of = 6 + 3 = 9

Question 7.

Is each equation true or false?

Answer:

Question 8.

Use the picture to write a subtraction equation.

________ – 0 = _______

Answer:

5 – 0 = 5

Question 9.

You have 8 beads. 5 are orange. The rest are blue. Shade the circles next to the equations that describe the beads.

â—‹ 3 + 5 = 8

â—‹ 8 – 2 = 6

â—‹ 4 + 4 = 8

â—‹ 8 – 5 = 3

Answer:

Question 10.

Use the numbers shown to write two equations.

Answer:

GivenÂ Â 3Â Â Â 8Â Â Â 5

3 + 5 = 8Â Â Â 5 + 3 = 8

Question 11.

Shade the circle next to the equation that does not belong in the fact family.

â—‹ 3 + 1 = 4

â—‹ 4 – 3 = 1

â—‹ 1 + 3 = 4

â—‹ 3 – 1= 2

Answer:

Question 12.

There are 3 rabbits. 3 more join them. Shade the circle next to the equation that shows how many rabbits there are in all.

â—‹ 3 + 2 = 5

â—‹ 3 + 4 = 7

â—‹ 4 + 1 = 5

â—‹ 3 + 3 = 6

Answer:

*Conclusion:*

Hope you are all satisfied with the answers provided in the Bigideas Math Grade 1 Chapter 3 More Addition and Subtraction Situations. Get different methods to solve the problems in our Big Ideas Math Solution Key 1st Grade Chapter 3 More Addition & Subtraction Situations. Thus, the students who are interested to learn the basics quickly can follow the methods given here.