Topic: Number and Operations  >>  Demonstrate proficiency with basic addition and subtraction facts.

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 3 2 + 6 4

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 5 3 4 2

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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?View Details Choose an opposite number sentence for 13 + 8 = 21.View Details Choose an opposite number sentence for 11 + 14 = 25.View Details Choose an opposite number sentence for 18 + 14 = 32.View Details Choose an opposite number sentence for 9 + 8 = 17. View Details Choose the correct addition and subtraction fact family using 3, 2, and 5. View Details Choose the correct addition and subtraction fact family using 4, 3, and 7.View Details Complete the basic fact. If 11 - 7 = 4, then 4 + 7 = _____. View Details Complete the basic fact. If 14 - 8 = 6, then 8 + 6 = _____. View Details Complete the fact. If 3 + 9 = 12, then 12 - 9 = _____. View Details Complete the fact. If 8 + 7 = 15, then 15 - 7 = _____. View Details Complete the fact. If 6 + 4 = 10, then 10 - 4 = _____. View Details 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?View Details
Find the sum of 27 and 51.
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Identify the opposite number sentence for 10 + 9 = 19.
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Identify the opposite number sentence for 8 + 9 = 17.
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Identify the opposite number sentence for 9 + 7 = 16.View Details
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?View Details
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?View Details
Which addition fact would help you to solve 16 - 7?View Details
Which addition fact would help you to solve 16 - 2?View Details
Which addition fact would help you to solve 18 - 5?
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