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1.
Sally has 5 crayons and she gave 2 crayons to her sister. She was left with 3 crayons. Which number sentence will help Sally to check her results?
 a. 5 + 3 = 2 b. 5 - 2 = 3 c. 2 - 3 = 5 d. 2 + 5 = 3

2.
Eric had $7 and he gave$4 to his brother. He was left with $3. Which number sentence will help him to check his results?  a. 4 - 3 = 7 b. 7 + 3 = 4 c. 7 - 4 = 3 d. 4 + 7 = 3 #### Answer: (c) Correct answer : (3) 3. Carol had$10 and she bought a lunch box for $7. She was left with$3. Which number sentence will help Carol to check her results?
 a. 10 + 3 = 7 b. 7 - 3 = 10 c. 10 - 7 = 3 d. 7 + 10 = 3

4.
Joan has 13 stamps and he gave 4 stamps to his brother. He was left with 9 stamps. Which number sentence will help him to check his results?
 a. 13 + 9 = 4 b. 4 + 13 = 9 c. 4 - 9 = 13 d. 13 - 4 = 9

5.
Choose the correct addition and subtraction fact family using 4, 3, and 7.
 a. 13 + 7 = 6, 7 - 13 = 6 b. 13 + 7 = 6, 6 + 7 = 13 c. 7 + 3 = 4, 3 - 4 = 7 d. 4 + 3 = 7, 7 - 4 = 3

6.
Choose the correct addition and subtraction fact family using 3, 2, and 5.
 a. 3 + 2 = 5, 5 - 3 = 2 b. 5 + 2 = 3, 2 - 3 = 5 c. 9 + 5 = 4, 4 + 5 = 9 d. 9 + 5 = 4, 5 - 9 = 4

7.
Choose the correct addition and subtraction fact family using 6, 5, and 11.
 a. 15 + 8 = 7, 8 - 15 = 7 b. 11 + 5 = 6, 5 - 6 = 11 c. 6 + 5 = 11, 11 - 6 = 5 d. 15 + 8 = 7, 7 + 8 = 15

8.
Which number sentence helps you check your answer for   9 - 4 = 5?
 a. 9 + 5 = 4 b. 5 + 4 = 9 c. 4 - 5 = 9 d. 5 - 4 = 9

9.
Which number sentence helps you check your answer for   12 - 3 = 9?
 a. 12 + 9 = 3 b. 3 - 9 = 12 c. 9 + 3 = 12 d. 9 - 3 = 12