Subtraction with Regrouping Review

2-Digit and 1-Digit

100

26 - 2 =

24

200

38 - 3

35

300

59 - 5 =

54

400

77 - 7 =

70

500

99 - 3=

96

2-Digit and 2-Digit

100

28 - 16 =

12

200

34-15 =

29

300

68 - 39 =

29

400

76 - 18 =

58

500

41 - 23=

18

Is it Regrouping?

100

Is 27 - 19 a regrouping problem?

Yes

200

Is 34 - 14 a regrouping problem?

No

300

Is 65 - 17 a regrouping problem?

Yes

400

Tell WHY 72 - 18 is a regrouping problem.

It is a regrouping problem because 2-8 is not possible. You have to go next door to get 10 more to make it 12-8.

500

Tell WHY 35 - 21 is not a regrouping problem.

It is not a regrouping problem because when you can subtract 5-1.

Add and Subtract

100

Solve 62 - 13. Use addition to check your work.

49

200

Solve 56 - 12. Use addition to check your work.

44

300

Solve 88 - 61. Use addition to check your work.

27

400

Solve 53 - 18. Use addition to check your work.

35

500

Solve 90 - 15. Use addition to check your work.

75

Word Problems

100

Sally had 58 cents. She spent 16 cents at the store. How many cents does Sally have left?

42 cents

200

Ethan has 76 Lego pieces. 50 are red and the rest are blue. How many Lego pieces are blue?

26 Lego pieces

300

Mrs. Quiring had 35 cupcakes. She gave 26 cupcakes to her students. How many cupcakes does Mrs. Quiring have left?

9 cupcakes

400

There are 81 animals at the pound. 43 of the animals are dogs and the rest are cats. How many of the animals are cats?

38 cats

500

Mrs. Quiring had 42 stickers in the treasure box. She gave 15 to her homeroom class and gave 16 to her reading class. How many stickers does Mrs. Quiring have left?

11 stickers