Two- Digit Subtraction

Without Regrouping

100

What is the difference of 45-21

24

200

What is the difference of 75-15

60

300

What is the difference of 66-41

25

400

What is the difference of 54-24

30

500

What is the difference of 28-13

15

Estimate

100

Estimate the difference of 24 - 13

20 - 10 = 10

200

Estimate the difference of 46 - 31

50 - 30 = 20

300

Estimate the difference of  48 -9

50-10 = 40

400

Estimate the difference of  67 - 24

70 - 20 = 50

500

Estimate the difference of 36 - 14

40 - 10 = 30

With Regrouping

100

What is the difference of 24 - 15

9

200

What is the difference of 37 - 19

18

300

What is the difference of 51 - 37

14

400

What is the difference of 74 - 49

25

500

What is the difference of 91 - 78

13

Word Problems

100

I have 2 points and Kit has 9 points. How many more points does Kit have than me?

7

200

You packed 13 suitcases for your trip to Paris. I only needed 5. How many more suitcases did you pack than me?

8

300

I have 36 Christmas Cards to send out this year. If I've already sent 14, how many more cards do I have left to send?

22

400

I picked a bushel of 27 bananas. 9 of them were rotten by the time I got home. How many bananas are still edible?

18

500

You attend 40 dance classes every year. So far this year, you've been to 18. How many classes are left?

22