Subtraction from 18 (1st and second grade exercises)

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8 - 62
12 - 93
11 - 65
12 - 84
14 - 77
10 - 28
9 - 72
14 - 68
13 - 76
14 - 95
18 - 99
17 - 89
12 - 75
10 - 91
6 - 51
8 - 62
14 - 86
10 - 010
11 - 83
15 - 78
11 - 65
13 - 85
10 - 73
6 - 15
11 - 74
4 - 22
8 - 35
4 - 31
17 - 98
15 - 69
15 - 96
16 - 88
16 - 97
16 - 79