subtraction/with-borrowing/hard · 套题 48
20 problems
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班级:
日期:
1
2 - 1
=
2
4 - 2
=
3
7 - 2
=
4
4 - 3
=
5
3 - 2
=
6
6 - 5
=
7
2 - 1
=
8
8 - 3
=
9
9 - 5
=
10
9 - 4
=
11
6 - 4
=
12
8 - 1
=
13
3 - 1
=
14
9 - 6
=
15
3 - 2
=
16
7 - 6
=
17
8 - 3
=
18
4 - 1
=
19
4 - 1
=
20
7 - 4
=