2桁の足し算と引き算
.
85 - 42 = 41 + 67 =
83 - 59 = 39 - 30 =
98 + 36 = 95 + 10 =
63 - 61 = 10 - 10 =
48 - 23 = 65 - 8 =
41 - 20 = 86 - 70 =
75 + 93 = 89 + 13 =
75 - 32 = 16 + 61 =
9 + 56 = 22 + 44 =
82 - 28 = 51 - 26 =
74 + 69 = 78 + 56 =
9 - 7 = 43 - 36 =
59 + 26 = 73 + 24 =
95 + 61 = 31 + 17 =
34 + 67 = 58 + 67 =
65 + 26 = 26 + 15 =
53 - 38 = 31 - 30 =
72 - 8 = 51 + 92 =
72 + 34 = 25 - 14 =
83 - 18 = 48 + 35 =
20 - 15 = 62 - 22 =
28 + 64 = 45 - 13 =
45 + 13 = 73 + 41 =
40 - 13 = 76 + 25 =
22 - 17 = 99 - 20 =
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