Addition
7 + 8 = ______
15
10, ______, ______, 40, 50
20, 30
14 - ____ = 7
7
4 + _____ = 10
6
5, 10, ____, 20, ____, _____
15, 25, 30
16 - 5 = _______
11
____ + 3 = 13
10
20, 40, ____, 80, ____
60, 100
9 - 3 = _____
6
9 + 11 = _____
20
10, _____, ______, ______, 50
20, 30, 40
18 - ______ = 13
5
12 + _____ = 17
5
0, ______, 50
25
______ - 4 = 16
20