2桁の足し算と引き算
.
36 - 32 = 25 + 41 =
63 + 73 = 57 + 56 =
64 + 17 = 19 + 71 =
62 - 44 = 80 + 85 =
68 + 25 = 80 - 54 =
54 - 26 = 32 - 30 =
9 + 64 = 65 + 91 =
65 - 22 = 60 - 58 =
97 + 64 = 42 + 49 =
56 + 87 = 77 + 55 =
27 + 67 = 13 - 8 =
13 + 74 = 31 - 29 =
57 + 30 = 47 + 89 =
50 - 37 = 46 + 72 =
59 - 34 = 41 - 38 =
34 + 86 = 83 + 54 =
50 - 15 = 27 + 40 =
58 - 18 = 89 - 79 =
38 - 33 = 28 + 34 =
31 - 11 = 13 + 90 =
85 + 81 = 66 - 32 =
98 - 46 = 11 + 89 =
17 + 21 = 85 - 25 =
53 + 57 = 69 + 60 =
50 + 78 = 42 - 21 =
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