Add Sub 2 Digit · Set 7

20 problems
1
79 + 78 =
2
16 - 11 =
3
17 + 16 =
4
43 - 27 =
5
45 + 44 =
6
70 - 43 =
7
73 + 72 =
8
97 - 17 =
9
11 + 10 =
10
35 - 29 =
11
87 - 55 =
12
49 + 50 =
13
60 - 41 =
14
21 + 22 =
15
33 - 18 =
16
83 + 84 =
17
95 - 70 =
18
55 + 56 =
19
68 - 49 =
20
27 + 28 =
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