Sally had 58 cents. She spent 16 cents at the store. How many cents does Sally have left?
42 cents
200
38 + 3
41
200
15 + 34 =
49
200
Is 14 + 34 a regrouping problem?
No
200
Solve 56 - 12. Use addition to check your work.
44
200
Ethan has 76 Lego pieces. 50 are red and the rest are blue. How many Lego pieces are blue?
26 Lego pieces
300
59 + 5 =
64
300
68 + 33 =
101
300
Is 67 + 13 a regrouping problem?
Yes
300
Solve 88 - 61. Use addition to check your work.
27
300
Mrs. Quiring had 35 cupcakes. She gave 26 cupcakes to her students. How many cupcakes does Mrs. Quiring have left?
9 cupcakes
400
77 + 7 =
84
400
76 + 14 =
90
400
Tell WHY 72 + 18 is a regrouping problem.
It is a regrouping problem because 2 + 8 = 10. There are 10 ones and this can make a ten stick.
400
Solve 53 - 18. Use addition to check your work.
35
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
99 + 3
102
500
23 + 41 + 28 =
92
500
Tell WHY 25 + 31 is not a regrouping problem.
It is not a regrouping problem because when you add the ones they equal a number less than 10. 5 + 1 = 6 and that can fit in the ones place.
500
Solve 90 - 15. Use addition to check your work.
75
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?