2桁の足し算と引き算
.
79 - 67 = 24 + 39 =
15 + 95 = 67 + 74 =
13 - 9 = 40 + 73 =
11 - 10 = 15 - 9 =
85 + 80 = 75 - 8 =
85 - 51 = 24 - 10 =
89 - 17 = 24 + 43 =
43 - 41 = 57 + 47 =
89 + 83 = 79 - 58 =
27 + 26 = 34 + 77 =
65 + 19 = 49 + 65 =
21 + 39 = 25 - 13 =
59 + 45 = 48 - 31 =
31 - 16 = 25 + 82 =
90 + 63 = 88 + 39 =
47 - 19 = 49 - 26 =
67 + 82 = 17 - 9 =
14 - 11 = 36 + 95 =
61 + 50 = 27 - 24 =
66 + 50 = 89 - 81 =
50 - 17 = 83 + 39 =
65 + 20 = 30 + 52 =
78 - 41 = 14 + 54 =
26 + 43 = 22 + 18 =
98 - 35 = 74 + 93 =
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