1桁の足し算と引き算虫食い
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8 + 6 = 14 9 + 7 = 16
8 - 1 = 7 5 + 7 = 12
2 + 1 = 3 1 + 3 = 4
5 + 4 = 9 2 + 5 = 7
3 + 4 = 7 5 - 4 = 1
3 - 0 = 3 2 + 2 = 4
9 + 0 = 9 3 - 3 = 0
2 + 9 = 11 5 + 0 = 5
2 + 2 = 4 1 + 7 = 8
9 - 4 = 5 7 - 6 = 1
4 - 3 = 1 3 - 3 = 0
9 + 5 = 14 8 - 3 = 5
9 - 6 = 3 8 + 2 = 10
5 - 0 = 5 3 - 0 = 3
2 + 2 = 4 8 + 1 = 9
8 - 7 = 1 2 - 0 = 2
5 - 2 = 3 2 - 0 = 2
7 + 5 = 12 7 - 3 = 4
3 - 2 = 1 5 - 5 = 0
7 + 8 = 15 5 + 3 = 8
9 + 0 = 9 4 + 1 = 5
3 + 1 = 4 2 - 0 = 2
6 + 8 = 14 4 + 5 = 9
3 - 3 = 0 9 + 3 = 12
3 + 0 = 3 1 + 1 = 2
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