41 + 52
93
75 - 40
35
5, 10 __ , __, 25
15, 20
35, 40, __, __, 55
45, 50
300 + 432
732
505 - 105
400
___ - 7 = 8
15
14 - __ = 9
5
16 - ___ =9
7
___ - 4 = 9
13
15 _ 8 =
7
14 + __ = 20
6
3 + 6 + 9 =
18
11 + 2 + 6 =
19
