Go through the **Spectrum Math Grade 2 Answer Key Chapter 2 Lesson 2.11 Adding to 17, 18, 19, and 20 **and get the proper assistance needed during your homework.

## Spectrum Math Grade 2 Chapter 2 Lesson 2.11 Adding to 17, 18, 19, and 20 Answers Key

**Add.**

Answer:

The addition of the two given numbers is 18.

Explanation:

Let us add 9 and 9.

Add 9 ones and 9 ones.

9 ones + 9 ones = 18 ones.

Write 8 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 18.

Answer:

The addition of the two given numbers is 17.

Explanation:

Let us add 8 and 9.

Add 8 ones and 9 ones.

8 ones + 9 ones = 17 ones.

Write 7 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 17.

Answer:

The addition of the two given numbers is 16.

Explanation:

Let us add 9 and 7.

Add 9 ones and 7 ones.

9 ones + 7 ones = 16 ones.

Write 6 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 16.

Answer:

The addition of the two given numbers is 13.

Explanation:

Let us add 5 and 8.

Add 5 ones and 8 ones.

5 ones + 8 ones = 13 ones.

Write 3 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 13.

Answer:

The addition of the two given numbers is 19.

Explanation:

Let us add 10 and 9.

Add 10 ones and 9 ones.

10 ones + 9 ones = 19 ones.

Write 9 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 19.

Answer:

The addition of the two given numbers is 12.

Explanation:

Let us add 3 and 9.

Add 3 ones and 9 ones.

3 ones + 9 ones = 12 ones.

Write 2 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 12.

Answer:

The addition of the two given numbers is 14.

Explanation:

Let us add 5 and 9.

Add 5 ones and 9 ones.

5 ones + 9 ones = 14 ones.

Write 4 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 14.

Answer:

The addition of the two given numbers is 20.

Explanation:

Let us add 12 and 8.

Add 2 ones and 8 ones.

2 ones + 8 ones = 10 ones.

Write 0 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 10.

Answer:

The addition of the two given numbers is 15.

Explanation:

Let us add 6 and 9.

Add 6 ones and 9 ones.

6 ones + 9 ones = 15 ones.

Write 5 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 15.

Answer:

The addition of the two given numbers is 12.

Explanation:

Let us add 8 and 4.

Add 8 ones and 4 ones.

8 ones + 4 ones = 12 ones.

Write 2 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 12.

Answer:

The addition of the two given numbers is 15.

Explanation:

Let us add 8 and 7.

Add 8 ones and 7 ones.

8 ones + 7 ones = 15 ones.

Write 5 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 15.

Answer:

The addition of the two given numbers is 17.

Explanation:

Let us add 9 and 8.

Add 9 ones and 8 ones.

9 ones + 8 ones = 17 ones.

Write 7 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 17.

Answer:

The addition of the two given numbers is 17.

Explanation:

Let us add 8 and 9.

Add 8 ones and 9 ones.

8 ones + 9 ones = 17 ones.

Write 7 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 17.

Answer:

The addition of the two given numbers is 14.

Explanation:

Let us add 7 and 7.

Add 7 ones and 7 ones.

7 ones + 7 ones = 14 ones.

Write 4 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 14.

Answer:

The addition of the two given numbers is 12.

Explanation:

Let us add 5 and 7.

Add 5 ones and 7 ones.

5 ones + 7 ones = 12 ones.

Write 2 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 12.

Answer:

The addition of the two given numbers is 13.

Explanation:

Let us add 9 and 4.

Add 9 ones and 4 ones.

9 ones + 4 ones = 13 ones.

Write 3 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 13.

Answer:

The addition of the two given numbers is 12.

Explanation:

Let us add 6 and 6.

Add 6 ones and 6 ones.

6 ones + 6 ones = 12 ones.

Write 2 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 12.

Answer:

The addition of the two given numbers is 14.

Explanation:

Let us add 8 and 6.

Add 8 ones and 6 ones.

8 ones + 6 ones = 14 ones.

Write 4 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 14.

Answer:

The addition of the two given numbers is 19.

Explanation:

Let us add 13 and 6.

Add 3 ones and 6 ones.

3 ones + 6 ones = 9 ones.

Write 9 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 19.

Answer:

The addition of the two given numbers is 13.

Explanation:

Let us add 8 and 5.

Add 8 ones and 5 ones.

8 ones + 5 ones = 13 ones.

Write 3 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 13.

Answer:

The addition of the two given numbers is 18.

Explanation:

Let us add 9 and 9.

Add 9 ones and 9 ones.

9 ones + 9 ones = 18 ones.

Write 8 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 18.

Answer:

The addition of the two given numbers is 15.

Explanation:

Let us add 7 and 8.

Add 7 ones and 8 ones.

7 ones + 8 ones = 15 ones.

Write 5 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 15.

Answer:

The addition of the two given numbers is 12.

Explanation:

Let us add 7 and 5.

Add 7 ones and 5 ones.

7 ones + 5 ones = 12 ones.

Write 2 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 12.

Answer:

The addition of the two given numbers is 20.

Explanation:

Let us add 17 and 3.

Add 5 ones and 5 ones.

5 ones + 5 ones = 10 ones.

1 ten + 1 carry = 2 ten’s

Write 0 in one’s place and carry 2 ten to ten’s place. Hence the addition of the two given numbers is 20.

Answer:

The addition of the two given numbers is 20.

Explanation:

Let us add 15 and 5.

Add 5 ones and 5 ones.

5 ones + 5 ones = 10 ones.

1 ten + 1 carry = 2 ten’s

Write 0 in one’s place and carry 2 ten to ten’s place. Hence the addition of the two given numbers is 20.

Answer:

The addition of the two given numbers is 14.

Explanation:

Let us add 9 and 5.

Add 9 ones and 5 ones.

9 ones + 5 ones = 14 ones.

Write 4 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 14.

Answer:

The addition of the two given numbers is 13.

Explanation:

Let us add 7 and 6.

Add 7 ones and 6 ones.

7 ones + 6 ones = 13 ones.

Write 3 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 13.

Answer:

The addition of the two given numbers is 17.

Explanation:

Let us add 9 and 8.

Add 9 ones and 8 ones.

9 ones + 8 ones = 17 ones.

Write 7 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 17.

Answer:

The addition of the two given numbers is 16.

Explanation:

Let us add 8 and 8.

Add 8 ones and 8 ones.

8 ones + 8 ones = 16 ones.

Write 6 in one’s place and carry 1 ten to ten’s place. Hence the addition of the two given numbers is 16.

Answer:

The addition of the two given numbers is 19.

Explanation:

Let us add 12 and 7.

Add 2 ones and 7 ones.

2 ones + 7 ones = 9 ones.

Bring down the 1 ten to ten’s place. Hence the addition of the two given numbers is 19.