1桁の足し算と引き算虫食い
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4 + 7 = 11 1 + 2 = 3
1 + 3 = 4 1 - 0 = 1
5 - 5 = 0 8 - 5 = 3
6 + 7 = 13 7 + 5 = 12
6 - 0 = 6 9 + 8 = 17
1 - 0 = 1 5 - 5 = 0
5 + 5 = 10 3 - 0 = 3
9 + 8 = 17 7 - 1 = 6
8 - 4 = 4 6 + 9 = 15
1 + 7 = 8 3 + 2 = 5
2 - 2 = 0 7 + 4 = 11
6 + 0 = 6 9 - 9 = 0
1 - 0 = 1 4 + 8 = 12
7 + 5 = 12 6 - 0 = 6
7 - 4 = 3 1 + 8 = 9
2 + 5 = 7 1 - 1 = 0
2 - 2 = 0 9 + 0 = 9
1 - 1 = 0 6 + 1 = 7
8 - 2 = 6 1 + 7 = 8
9 - 9 = 0 9 + 2 = 11
2 + 8 = 10 2 + 7 = 9
6 + 1 = 7 5 - 1 = 4
5 + 7 = 12 3 + 5 = 8
5 - 0 = 5 6 + 5 = 11
4 + 3 = 7 6 + 0 = 6
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