subtraction/with-borrowing/hard · 套题 98
20 problems
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班级:
日期:
1
8 - 1
=
2
4 - 1
=
3
8 - 6
=
4
4 - 3
=
5
9 - 4
=
6
9 - 7
=
7
4 - 3
=
8
9 - 7
=
9
8 - 2
=
10
2 - 1
=
11
8 - 5
=
12
7 - 5
=
13
9 - 2
=
14
2 - 1
=
15
5 - 4
=
16
3 - 1
=
17
7 - 4
=
18
7 - 5
=
19
6 - 3
=
20
9 - 1
=