# Spectrum Math Grade 1 Chapter 2 Lesson 7 Answer Key Counting and Writing 70 through 99

Practice with the help of Spectrum Math Grade 1 Answer Key Chapter 2 Lesson 2.7 Counting and Writing 70 through 99 regularly and improve your accuracy in solving questions.

## Spectrum Math Grade 1 Chapter 2 Lesson 2.7 Counting and Writing 70 through 99 Answers Key

Complete.

1. 7 tens 6 ones = 76 7 tens 6 ones = 76.

Explanation:
Number of tens = (10 × 7) =70.
Number of ones = (6 × 1) = 6.
Total = Number of tens + Number of ones
= 70 + 6
= 76.

2. 9 tens 8 ones = 98 9 tens 8 ones = 98.

Explanation:
Number of tens = (10 × 9) = 90.
Number of ones = (8 × 1) = 8.
Total = Number of tens + Number of ones
= 90 + 8
= 98.

3. 8 tens 3 ones =
8 tens 3 ones =  83.

Explanation:
Number of tens = (10 × 8) = 80.
Number of ones = (3 × 1) = 3.
Total = Number of tens + Number of ones
= 80 + 3
= 83.

4. 7 tens 1 one = ____
7 tens 1 one = 71.

Explanation:
Number of tens = (10 × 7) =70.
Number of ones = (1 × 1) = 1.
Total = Number of tens + Number of ones
= 70 + 1
= 71.

5. 8 tens 7 ones = ____
8 tens 7 ones = 87.

Explanation:
Number of tens = (10 × 8) = 80.
Number of ones = (7 × 1) = 7.
Total = Number of tens + Number of ones
= 80 + 7
= 87.

6. 9 tens 4 ones = ___
9 tens 4 ones = 94.

Explanation:
Number of tens = (10 × 9) = 90.
Number of ones = (4 × 1) = 4.
Total = Number of tens + Number of ones
= 90 + 4
= 94.

7. 9 tens 2 ones = ____
9 tens 2 ones = 92.

Explanation:
Number of tens = (10 × 9) = 90.
Number of ones = (2 × 1) = 2.
Total = Number of tens + Number of ones
= 90 + 2
= 92.

8. 7 tens 9 ones = ____
7 tens 9 ones = 79.

Explanation:
Number of tens = (10 × 7) = 70.
Number of ones = (9 × 1) = 9.
Total = Number of tens + Number of ones
= 70 + 9
= 79.

9. 8 tens 8 ones = _____
8 tens 8 ones = 88.

Explanation:
Number of tens = (10 × 8) = 80.
Number of ones = (8 × 1) = 8.
Total = Number of tens + Number of ones
= 80 + 8
= 88.

10. 8 tens 0 ones = _____
8 tens 0 ones = 80.

Explanation:
Number of tens = (10 × 8) = 80.
Number of ones = (0 × 1) = 0.
Total = Number of tens + Number of ones
= 80 + 0
= 80.

11. 7 tens 5 ones = ____
7 tens 5 ones = 75.

Explanation:
Number of tens = (10 × 7) =70.
Number of ones = (5 × 1) = 5.
Total = Number of tens + Number of ones
= 70 + 5
= 75.

12. 9 tens 9 ones = ____
9 tens 9 ones = 99.

Explanation:
Number of tens = (10 × 9) = 90.
Number of ones = (9 × 1) = 9.
Total = Number of tens + Number of ones
= 90 + 9
= 99.

13. 9 tens 1 one = ____
9 tens 1 one = 91.

Explanation:
Number of tens = (10 × 9) = 90.
Number of ones = (1 × 1) = 1.
Total = Number of tens + Number of ones
= 90 + 1
= 91.

14. 8 tens 6 ones = ____
8 tens 6 ones = 86.

Explanation:
Number of tens = (10 × 8) = 80.
Number of ones = (6 × 1) = 6.
Total = Number of tens + Number of ones
= 80 + 6
= 86.

15. 7 tens 0 ones = ____
7 tens 0 ones = 70.

Explanation:
Number of tens = (10 × 7) = 70.
Number of ones = (0 × 1) = 0.
Total = Number of tens + Number of ones
= 70 + 0
= 70.

16. 8 tens 2 ones = ____