Adding Three Numbers Answer Key | Hard

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p-top: 48 p-bot: 48 p-left: 32 p-right: 32 p-x: 32 m-bot: 24

Part A: Multiple Choice

Circle the best answer for each question.

1. What is 4 + 6 + 7?

A) 17

B) 16

C) 15

D) 14

4+6=10, then 10+7=17.

2. What is 5 + 5 + 9?

A) 18

B) 17

C) 19

D) 20

5+5=10, then 10+9=19.

3. What is 3 + 7 + 8?

A) 16

B) 17

C) 18

D) 19

3+7=10, then 10+8=18.

4. What is 2 + 9 + 6?

A) 15

B) 16

C) 17

D) 18

9+6=15, then 15+2=17.

Part B: Fill in the Blank

Write the correct answer on each line.

1. 6 + 4 + 8 = 18

6+4=10, then 10+8=18.

2. 5 + 5 + 7 = 17

5+5=10, then 10+7=17.

3. 3 + 3 + 9 = 15

3+3=6, then 6+9=15.

4. 1 + 9 + 8 = 18

1+9=10, then 10+8=18.

5. 4 + 4 + 6 = 14

4+4=8, then 8+6=14.

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