2桁の足し算と引き算
.
46 + 28 = 54 - 16 =
42 + 41 = 55 - 25 =
88 + 29 = 82 + 78 =
29 + 81 = 81 - 71 =
52 + 77 = 65 - 29 =
41 - 38 = 93 - 48 =
15 - 7 = 77 + 20 =
97 - 14 = 38 - 31 =
68 + 34 = 51 - 38 =
34 + 90 = 18 - 18 =
46 + 34 = 10 + 66 =
72 + 11 = 37 - 33 =
80 - 38 = 56 - 36 =
87 - 46 = 76 + 64 =
41 + 52 = 96 + 32 =
82 + 58 = 64 - 59 =
77 - 20 = 53 - 41 =
29 - 12 = 83 - 29 =
90 + 71 = 89 + 91 =
47 + 25 = 46 + 12 =
60 - 32 = 18 + 47 =
60 - 55 = 28 + 27 =
47 - 16 = 82 - 59 =
23 + 99 = 40 - 10 =
88 - 36 = 99 - 69 =
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