Practice with the help of **Spectrum Math Grade 1 Answer Key Chapter 1 Lesson 1.7** **Fact Families 0 Through 6** regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 1 Chapter 1 Lesson 1.7 Fact Families 0 Through 6 Answers Key

**Add or Subtract.**

**1.**

Answer:

Explanation:

Addition:

2 + 3 = 5.

=> Two plus three equals five.

3 + 2 = 5.

=> Three plus two equals five.

Subtraction:

5 – 2 = 3.

=> Five minus two equals three.

5 – 3 = 2.

=> Five minus three equals two.

**2.**

Answer:

Explanation:

Addition:

5 + 1 = 6.

=> Five plus one equals six.

1 + 5 = 6.

=> One plus five equals six.

Subtraction:

6 – 5 = 1.

=> Six minus five equals one.

6 – 1 = 5.

=> Six minus one equals five.

**3.**

Answer:

Explanation:

Addition:

3 + 1 = 4.

=> Three plus one equals four.

1 + 3 = 4.

=> One plus three equals four.

Subtraction:

4 – 3 = 1.

=> Four minus three equals one.

4 – 1 = 3.

=> Four minus one equals three.

**4.**

Answer:

Explanation:

Addition:

3 + 3 = 6.

=> Three plus three equals six.

Subtraction:

6 – 3 = 3.

=> Six minus three equals three.

**5.**

Answer:

Explanation:

Addition:

1 + 2 = 3.

=> One plus two equals three.

2 + 1 = 3.

=> Two plus one equals three.

Subtraction:

3 – 1 = 2.

=> Three minus one equals two.

3 – 2 = 1.

=> Three minus two equals one.

**6.**

Answer:

Explanation:

Addition:

3 + 3 = 6.

=> Three plus three equals six.

Subtraction:

6 – 3 = 3.

=> Six minus three equals three.

**7.**

Answer:

Explanation:

Addition:

2 + 2 = 4.

=> Two plus two equals four.

Subtraction:

4 – 2 = 2.

=> Four minus two equals two.

**8.**

Answer:

Explanation:

Addition:

4 + 1 = 5.

=> Four plus one equals five.

1 + 4 = 5.

=> One plus four equals five.

Subtraction:

5 – 4 = 1.

=> Five minus four equals one.

5 – 1 = 4.

=> Five minus one equals four.

**Add or Subtract.**

**9.**

Answer:

Explanation:

Addition:

2 + 4 = 6.

=> Two plus four equals six.

4 + 2 = 6.

=> Four plus two equals six.

Subtraction:

6 – 2 = 4.

=> Six minus two equals four.

6 – 4 = 2.

=> Six minus four equals two.

**10.**

Answer:

Explanation:

Addition:

1 + 1 = 2.

=> One plus one equals two.

Subtraction:

2 – 1 = 1.

=> Two minus one equals one.

**11.**

Answer:

Explanation:

Addition:

2 + 0 = 2.

=> Two plus zero equals two.

0 + 2 = 2.

=> Zero plus two equals two.

Subtraction:

2 – 0 = 2.

=> Two minus zero equals two.

2 – 2 = 0.

=> Two minus two equals zero.

**12.**

Answer:

Explanation:

Addition:

5 + 0 = 5.

=> Five plus zero equals five.

0 + 5 = 5.

=> Zero plus five equals five.

Subtraction:

5 – 5 = 0.

=> Five minus five equals zero.

5 – 0 = 5.

=> Five minus zero equals five.

**13.**

Answer:

Explanation:

Addition:

2 + 3 = 5.

=> Two plus three equals five.

3 + 2 = 5.

=> Three plus two equals five.

Subtraction:

5 – 2 = 3.

=> Five minus two equals three.

5 – 3 = 2.

=> Five minus three equals two.

**14.**

Answer:

Explanation:

Addition:

6 + 0 = 6.

=> Six plus zero equals six.

0 + 6 = 6.

=> Zero plus six equals six.

Subtraction:

6 – 0 = 6.

=> Six minus zero equals six.

6 – 6 = 0.

=> Six minus six equals zero.

**15.**

Answer:

Explanation:

Addition:

3 + 0 = 3.

=> Three plus zero equals three.

0 + 3 = 3.

=> Zero plus three equals three.

Subtraction:

3 – 3 = 0.

=> Three minus three equals zero.

3 – 0 = 3.

=> Three minus zero equals three.

**16.**

Answer:

Explanation:

Addition:

1 + 0 = 1.

=> One plus zero equals one.

0 + 1 = 1.

=> Zero plus one equals one.

Subtraction:

1 – 0 = 1.

=> One minus zero equals one.

1 – 1 = 0.

=> One minus one equals zero.