subtraction/with-borrowing/hard · 套题 38
20 problems
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班级:
日期:
1
7 - 3
=
2
2 - 1
=
3
3 - 2
=
4
6 - 4
=
5
7 - 2
=
6
4 - 3
=
7
7 - 4
=
8
5 - 2
=
9
8 - 3
=
10
3 - 2
=
11
2 - 1
=
12
3 - 2
=
13
6 - 4
=
14
5 - 4
=
15
3 - 1
=
16
9 - 4
=
17
2 - 1
=
18
2 - 1
=
19
7 - 4
=
20
7 - 4
=