2桁の足し算と引き算
.
55 + 11 = 19 - 13 =
39 + 18 = 63 - 28 =
15 + 30 = 36 + 69 =
69 - 40 = 47 - 19 =
84 + 90 = 99 + 87 =
10 - 8 = 46 - 39 =
55 - 41 = 66 + 12 =
95 - 55 = 96 - 50 =
11 + 75 = 61 + 75 =
39 + 26 = 50 + 25 =
91 - 7 = 86 - 17 =
55 - 53 = 28 - 19 =
44 - 16 = 14 - 10 =
76 + 35 = 71 + 49 =
30 - 28 = 16 - 11 =
93 - 20 = 10 + 30 =
50 + 37 = 11 + 63 =
72 - 27 = 27 - 9 =
65 + 18 = 89 - 40 =
43 + 65 = 88 + 21 =
46 + 71 = 88 + 15 =
15 + 20 = 99 - 61 =
48 - 8 = 11 + 61 =
77 - 30 = 16 - 8 =
20 + 69 = 40 - 26 =
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