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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(2025.8)

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