1桁の足し算と20までの引き算虫食い
.
1 - 0 = 1 8 + 6 = 14
7 - 4 = 3 9 - 4 = 5
1 - 0 = 1 5 + 2 = 7
5 + 4 = 9 5 + 7 = 12
5 - 4 = 1 4 + 8 = 12
8 + 9 = 17 5 + 6 = 11
7 + 5 = 12 3 + 6 = 9
3 + 4 = 7 2 - 2 = 0
5 + 1 = 6 7 + 9 = 16
9 - 9 = 0 2 - 1 = 1
4 + 9 = 13 8 + 2 = 10
7 + 5 = 12 7 - 5 = 2
4 - 4 = 0 1 + 2 = 3
6 - 6 = 0 3 + 2 = 5
1 + 5 = 6 8 - 1 = 7
7 + 2 = 9 3 - 3 = 0
5 - 2 = 3 5 - 3 = 2
7 + 0 = 7 2 + 0 = 2
2 + 1 = 3 4 + 2 = 6
8 - 6 = 2 9 - 3 = 6
8 + 9 = 17 6 - 0 = 6
8 + 3 = 11 9 + 8 = 17
1 + 8 = 9 4 + 1 = 5
4 + 7 = 11 3 - 2 = 1
7 + 4 = 11 9 + 0 = 9
. 3/400 Copyright (C) Alpha.Inc All Rights Reserved.
http://www.sangan.jp/