Mental Math
Count up to find the difference:
65 - 58 = ?
7
Susan has 72 cookies. She gives 21 away. How many cookies does she have now?
51
55 - 40 = ?
15
46 - 28 = ?
18
Count up to find the difference:
46 - 37 = ?
9
Miss Graff has 68 stickers. She gives 21 to her students. How many stickers does she have left?
47
86 - 42 = ?
44
50 - 13 = ?
37
Count up to find the difference:
35 - 27 = ?
8
Corey has 25 pieces of candy. He gives 15 pieces to his sister. How many pieces of candy does Corey have now?
10
23 - 11 = ?
12
61 - 12 = ?
49
Count up to find the difference:
59 - 52 = ?
7
Elsa buys 82 balloons for the party. 36 of the balloons fly up into the sky and float away! How many balloons does Elsa have left?
46
99 - 7 = ?
92
33 - 7 = ?
26
Count up to find the difference:
100 - 91= ?
9
Lisa scores 45 points. Jason scores 19 points.
1. Who scores more points?
2. How many more points?
2. 26 more points
87 - 36 = ?
51
91 - 8 = ?
83