2桁の足し算と引き算
.
39 - 10 = 35 + 29 =
73 - 30 = 61 + 61 =
82 - 13 = 40 + 60 =
76 + 79 = 97 - 83 =
20 + 24 = 31 + 89 =
95 - 80 = 76 - 28 =
98 - 39 = 73 + 54 =
80 + 61 = 24 - 8 =
86 + 30 = 37 + 27 =
86 + 84 = 17 + 49 =
77 + 30 = 41 - 25 =
51 - 44 = 16 - 10 =
70 - 25 = 56 - 21 =
53 - 50 = 88 - 21 =
55 + 14 = 77 + 98 =
76 + 33 = 72 + 38 =
12 + 38 = 9 + 35 =
63 + 70 = 66 + 53 =
24 + 54 = 73 - 52 =
63 - 17 = 72 + 94 =
56 - 40 = 52 + 99 =
21 - 13 = 92 - 55 =
53 + 79 = 15 + 16 =
33 - 16 = 33 + 58 =
34 + 27 = 49 + 74 =
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