The answers to **Bridges in Mathematics Grade 1 Home Connections Answer Key Unit 3 Module 4 **are undoubtedly the best study material a student can get hold of.

## Bridges in Mathematics Grade 1 Home Connections Answer Key Unit 3 Module 4

**Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 4 Session 2 Answer Key**

**Unifix Cube Equations, Sevens**

Question 1.

Color in the Unifix cubes in different ways to make 7, and write an equation to match each train.

a.

Answer:

Explanation:

Number of boxes in train = 7.

Each box different color in train = 1 Ã— 7

= 1 Ã— 7

= 7 boxes

b.

Answer:

Explanation:

Number of boxes in train = 7.

Number of yellow color boxes in train = 4.

Number of red color boxes in train = 3.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 4 + 3

= 7.

c.

Answer:

Explanation:

Number of boxes in train = 7.

Number of blue color boxes in train = 5.

Number of red color boxes in train = 2.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 5 + 2

= 7.

d.

Answer:

Explanation:

Number of boxes in train = 7.

Number of yellow color boxes in train = 6.

Number of black color boxes in train = 1.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 6 + 1

= 7.

Question 2.

Circle T for true or F for false.

a. 3 + 4 = 7

T or F

Answer:

Addition:

3 + 4 = 7. (TRUE)

Explanation:

Given Equation:

3 + 4 = 7. (TRUE)

b. 7 = 2 + 3 + 1

T or F

Answer:

Addition:

7 = 2 + 3 + 1. (F)

Explanation:

Given Equation:

2 + 3 + 1 = 5 + 1 = 6. (FALSE)

c. 7 = 3 + 4

T or F

Answer:

Addition:

7 = 3 + 4. (T)

Explanation:

Given Equation:

3 + 4 = 7. (TRUE)

d. 7 + 0 = 7

T or F

Answer:

Addition:

7 + 0 = 7. (T)

Explanation:

Given Equation:

7 + 0 = 7. (TRUE)

Question 3.

Add.

3 + 4 = ____________

2 + 2 + 2 = _____________

5 + 2 = _______________

Answer:

Addition:

3 + 4 = 7.

2 + 2 + 2 = 4 + 2 = 6.

5 + 2 = 7.

Explanation:

Given equations:

Addition:

3 + 4 = 7.Â Â Â Â Â Â 3 + 3 = 6.Â Â Â Â Â Â 2 + 5 = 7.Â Â Â Â Â Â 4 + 2 = 6.Â Â Â Â Â 7 + 0 = 7.Â Â Â Â Â Â 2 + 3 = 5.

2 + 2 = 4.Â Â Â Â Â Â Â 4 + 3 =7.Â Â Â Â Â Â 4 +1 = 5.Â Â Â Â Â Â 6 + 1 = 7.Â Â Â Â Â Â 6 + 0 = 6.Â Â Â Â Â Â 5 + 2 = 7.

Question 4.

Subtract.

7 – 2 = ____________

6 – 4 = ____________

7 – 4 = ____________

Answer:

Subtraction:

7 – 2 = 5.

6 – 4 = 2.

7 – 4 = 3.

Explanation:

Given Equations:

Subtraction:

Question 5.

3 + 4 is one way to make 7. Show four other ways to make 7. You can use addition or subtraction equations.

Answer:

Four other ways to make 7:

Addition:

4 + 3 = 7.

5 + 2 = 7.

6 + 1 = 7.

Subtraction:

8 – 1 = 7.

9 – 2 = 7.

10 – 3 = 7.

Explanation:

3 + 4 is one way to make 7.

Four other ways to make 7:

Addition:

4 + 3 = 7.

5 + 2 = 7.

6 + 1 = 7.

Subtraction:

8 – 1 = 7.

9 – 2 = 7.

10 – 3 = 7.

**Bridges in Mathematics Grade 1 Home Connections Unit 3 Module 4 Session 5 Answer Key**

**Unifix Cube Equations, Eights**

Question 1.

Color in the Unifix cubes in different ways to make 8, and write an equation to match each train.

a.

Answer:

Explanation:

Number of boxes in train = 8.

Number of yellow color boxes in train = 7.

Number of black color boxes in train = 1.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 7 + 1

= 8.

b.

Answer:

Explanation:

Number of boxes in train = 8.

Number of yellow color boxes in train = 4.

Number of black color boxes in train = 4.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 4 + 4

= 8.

c.

Answer:

Explanation:

Number of boxes in train = 8.

Number of red color boxes in train = 5.

Number of black color boxes in train = 3.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 5 + 3

= 8.

d.

Answer:

Explanation:

Number of boxes in train = 8.

Number of blue color boxes in train = 6.

Number of green color boxes in train = 2.

Total number of boxes colored in train = Number of yellow color boxes in train + Number of red color boxes in train

= 6 + 2

= 8.

Question 2.

Circle T for true or F for false.

a. 5 + 1 = 8

T or F

Answer:

Addition:

5 + 1 = 8. (F)

Explanation:

Given Equation:

5 + 1 = 6 not 8. (FALSE)

b. 8 = 2 + 3 + 1

T or F

Answer:

Addition:

8 = 2 + 3 + 1. (F)

Explanation:

Given Equation:

2 + 3 + 1 = 5 + 1 = 6 not 8. (FALSE)

c. 8 = 4 + 4

T or F

Answer:

Addition:

8 = 4 + 4. (T)

Explanation:

Given Equation:

4 + 4 = 8. (TRUE)

d. 3 + 5 = 8

T or F

Answer:

Addition:

3 + 5 = 8. (T)

Explanation:

Given Equation:

3 + 5 = 8. TRUE

Question 3.

Add.

4 + 3 = ____________

5 + 3 = ____________

4 + 2 + 2 = _____________

Answer:

Addition:

4 + 3 = 7.

5 + 3 = 8.

4 + 2 + 2 = 6 + 2 = 8.

Explanation:

Given equations:

Addition:

4 + 4 = 8.Â Â Â Â Â Â 4 + 3 = 7.Â Â Â Â Â Â 3 + 5 = 8.Â Â Â Â Â Â 1 + 2 = 3.Â Â Â Â Â 8 + 0 = 8.Â Â Â Â Â Â 3 + 3 = 6.

3 + 2 = 5.Â Â Â Â Â Â 5 + 3 = 8.Â Â Â Â Â Â 7 + 1 = 8.Â Â Â Â Â Â 6 + 2 = 8.Â Â Â Â Â 2 + 5 = 7.Â Â Â Â Â Â 2 + 6 = 8.

Question 4.

Subtract.

8 – 5 = ____________

7 – 5 = _____________

8 – 4 = _____________

Answer:

Subtraction:

8 – 5 = 3.

7 – 5 = 2.

8 – 4 = 4.

Explanation:

Given equations:

Subtractions:

7 – 5 = 2.Â Â Â 8 – 0 = 8.Â Â Â 8 – 4 = 4.Â Â Â 8 – 1 = 7.Â Â 7 – 3 = 4.Â Â 8 – 5 = 3.

8 – 2 = 6.Â Â Â Â 7 – 2 = 5.Â Â Â 8 – 8 = 0.Â Â Â 8 – 7 = 1.Â Â Â 8 – 3 = 5.Â Â 8 – 6 = 2.

Question 5.

4 + 4 is one way to make 8. Show four other ways to make 8. You can use addition or subtraction equations.

Answer:

Four other ways to make 8:

Addition equations:

3 + 5 = 8.

6 + 2 = 8.

5 + 3 = 8.

Subtraction equations:

8 – 0 = 8.

9 – 1 = 8.

10 – 2 = 8.

Explanation:

4 + 4 is one way to make 8.

Four other ways to make 8.

Addition equations:

3 + 5 = 8.

6 + 2 = 8.

5 + 3 = 8.

Subtraction equations:

8 – 0 = 8.

9 – 1 = 8.

10 – 2 = 8.