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消防员爸爸 一年级第一学期口算题

20以内退位减法(2025.12)

班级__________学号__________ 姓名__________
13 - 9 =15 - 7 =20 - 14 =15 - 6 =
11 - 2 =11 - 6 =20 - 11 =14 - 7 =
12 - 7 =10 - 8 =12 - 3 =20 - 15 =
20 - 9 =20 - 18 =13 - 7 =20 - 17 =
20 - 8 =11 - 4 =14 - 5 =11 - 7 =
15 - 8 =12 - 6 =20 - 1 =20 - 4 =
16 - 8 =10 - 3 =17 - 8 =14 - 8 =
13 - 5 =11 - 3 =13 - 8 =10 - 6 =
12 - 5 =20 - 19 =20 - 16 =10 - 5 =
13 - 6 =20 - 2 =14 - 9 =12 - 4 =
16 - 9 =20 - 5 =20 - 6 =15 - 9 =
11 - 9 =11 - 5 =12 - 9 =18 - 9 =
20 - 3 =10 - 7 =