2桁の足し算と引き算
.
9 + 11 = 74 - 36 =
40 - 24 = 24 - 22 =
29 - 22 = 55 - 48 =
88 - 42 = 58 + 28 =
85 - 11 = 68 - 28 =
70 - 35 = 24 - 24 =
79 - 55 = 79 - 46 =
39 - 38 = 48 + 49 =
24 - 9 = 99 - 9 =
80 + 57 = 90 + 15 =
28 - 12 = 53 + 51 =
66 + 11 = 25 + 29 =
45 - 45 = 11 - 9 =
19 - 14 = 36 + 51 =
46 + 11 = 59 - 42 =
89 - 89 = 64 - 61 =
82 + 41 = 16 - 14 =
62 - 13 = 66 + 44 =
87 + 99 = 57 - 8 =
12 - 10 = 25 - 12 =
55 + 85 = 92 - 81 =
32 + 58 = 68 + 94 =
30 - 29 = 46 - 27 =
54 - 34 = 76 + 69 =
29 - 12 = 24 - 19 =
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