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

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.  Explanation:
Number of boxes in train = 7.
Each box different color in train = 1 × 7
= 1 × 7
= 7 boxes

b.  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.  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.  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
3 + 4 = 7. (TRUE)

Explanation:
Given Equation:
3 + 4 = 7. (TRUE)

b. 7 = 2 + 3 + 1
T or F
7 = 2 + 3 + 1. (F)

Explanation:
Given Equation:
2 + 3 + 1 = 5 + 1 = 6. (FALSE)

c. 7 = 3 + 4
T or F
7 = 3 + 4. (T)

Explanation:
Given Equation:
3 + 4 = 7. (TRUE)

d. 7 + 0 = 7
T or F
7 + 0 = 7. (T)

Explanation:
Given Equation:
7 + 0 = 7. (TRUE)

Question 3. 3 + 4 = ____________
2 + 2 + 2 = _____________
5 + 2 = _______________ 3 + 4 = 7.
2 + 2 + 2 = 4 + 2 = 6.
5 + 2 = 7.

Explanation:
Given equations:
3 + 4 = 7.            3 + 3 = 6.            2 + 5 = 7.           4 + 2 = 6.          7 + 0 = 7.            2 + 3 = 5.
2 + 2 = 4.             4 + 3 =7.            4 +1 = 5.            6 + 1 = 7.            6 + 0 = 6.            5 + 2 = 7.

Question 4.
Subtract. 7 – 2 = ____________
6 – 4 = ____________
7 – 4 = ____________
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. Four other ways to make 7:
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:
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.  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.  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.  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.  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
5 + 1 = 8. (F)

Explanation:
Given Equation:
5 + 1 = 6 not 8. (FALSE)

b. 8 = 2 + 3 + 1
T or F
8 = 2 + 3 + 1. (F)

Explanation:
Given Equation:
2 + 3 + 1 = 5 + 1 = 6 not 8. (FALSE)

c. 8 = 4 + 4
T or F
8 = 4 + 4. (T)

Explanation:
Given Equation:
4 + 4 = 8. (TRUE)

d. 3 + 5 = 8
T or F
3 + 5 = 8. (T)

Explanation:
Given Equation:
3 + 5 = 8. TRUE

Question 3. 4 + 3 = ____________
5 + 3 = ____________
4 + 2 + 2 = _____________ 4 + 3 = 7.
5 + 3 = 8.
4 + 2 + 2 = 6 + 2 = 8.

Explanation:
Given equations:
4 + 4 = 8.            4 + 3 = 7.            3 + 5 = 8.           1 + 2 = 3.          8 + 0 = 8.            3 + 3 = 6.
3 + 2 = 5.            5 + 3 = 8.            7 + 1 = 8.            6 + 2 = 8.          2 + 5 = 7.           2 + 6 = 8.

Question 4.
Subtract. 8 – 5 = ____________
7 – 5 = _____________
8 – 4 = _____________
Subtraction: 8 – 5 = 3.
7 – 5 = 2.
8 – 4 = 4.

Explanation:
Given equations:
Subtractions:
7 – 5 = 2.      8 – 0 = 8.     8 – 4 = 4.      8 – 1 = 7.    7 – 3 = 4.    8 – 5 = 3.
8 – 2 = 6.       7 – 2 = 5.      8 – 8 = 0.     8 – 7 = 1.     8 – 3 = 5.   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. Four other ways to make 8:
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.