Do I regroup?
Set Up A Problem
How To Check Subtraction?
Mix Up
100
Do I regroup? Yes or No? 92-5
Yes!
100
Subtract. Regroup if you need to. 57-6 Show your work!!
Answer: 51
100
Is this answer correct? Use addition to check if it is correct. 75 -62 ____ 13
Answer: 13 +62 ____ 75
100
Write a number sentence. (Do not solve the problem) You have 64 crayons and give away 35 crayons. How many crayons are left?
Answer: 64-35=____
200
Do I regroup? Yes or No? 77-4
No!
200
Subtract. Regroup if you need to. 94-8 Show your work!
Answer: 86
200
Is this answer correct? Use addition to check if it is correct. 80 -14 ____ 66
Answer: 66 +14 ____ 80
200
Write a number sentence. (Do not solve the problem) 11 frogs sat on a log. 15 more frogs jumped onto the log. How many frogs are on the log now?
Answer: 11+15=_____
300
Do I regroup? Yes or No? 53-7
Yes!
300
Subtract. Regroup if you need to. 87-45 Show your work!
Answer: 42
300
Subtract. Check your answer by adding. 60 -20 ___
Answer: 60 40 -20 +20 ___ ____ 40 60
300
Write a number sentence. (Do not solve the problem) Mary gives 16 butterflies to Rich. How many butterflies does Mary have left?
Answer: 52-16=_____
400
Do you need to regroup? Find the answer. 47-6
No! Answer: 41
400
Subtract. Regroup if you need to. 70-48 Show you work!
Answer: 22
400
Subtract. Check your answer by adding. 78 -49 ____
Answer: 78 29 -49 +49 ____ ____ 29 78
400
Write a number sentence. Solve the problem. There are 65 crackers in a bag. The children eat 27 crackers. How many crackers are left? Show your work!!
Answer: 65-27=38 65 -27 ___ 38
500
Do you need to regroup? Find the answer. 70-8
Yes! Answer: 62
500
Subtract. Regroup if you need to. 41-25 Show your work!
Answer: 16
500
Subtract. Check your answer by adding. 40 -12 ____
Answer: 40 28 -12 +12 ___ ____ 28 40
500
Write a number sentence. Solve the problem. 14 boys go on a hike. 18 girls go on the hike. How many children go on the hike in all? Show your work!!
14+18=32 14 +18 ____ 32
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