Subtracting Two

What is 98-18=?

What does it mean to regroup when you subtract?

• When the ones make a ten or more and you must carry the 10.

• When the top number in the ones place is less than the bottom number, and you must borrow from the 10s place.

• When you subtract to find the sum.

Find the answer. Regroup if you need to.
62 - 4 = ____

• 56

• 66

• 58

• 52

Find the answer. Regroup if you need to.
76 - 4 = ___

• 72

• 80

• 74

• 70

Look at this problem. Do you need to regroup to find the answer?
54 - 7 = ___

• Yes

• No

Look at this problem. Do you need to regroup to find the answer?
97 - 7 = ___

• Yes 

• No

What does it mean to "find the difference"?

• To look at two different numbers.

• To find the sum in an addition problem.

• To find the answer in a subtraction problem.

Find the answer. Regroup if you need to.
53 - 29 = ____

• 34

• 24

• 32

• 82

Find the answer. Regroup if you need to.
67 - 13 = ____

• 44

• 74

• 80

• 54

Look at this subtraction problem:  
23 - 15 = ___
Which addition sentence can help you solve the subtraction problem?

• 23 + 8 = 15

• 23 - 8 = 15

• 8 + 15 = 23