subtraction/without-borrowing/expert · 套题 32
20 problems
姓名:
班级:
日期:
1
9 - 3
=
2
2 - 1
=
3
3 - 2
=
4
8 - 4
=
5
7 - 1
=
6
8 - 7
=
7
2 - 1
=
8
4 - 2
=
9
2 - 1
=
10
2 - 1
=
11
4 - 1
=
12
4 - 1
=
13
9 - 8
=
14
5 - 3
=
15
7 - 4
=
16
9 - 1
=
17
6 - 5
=
18
6 - 5
=
19
4 - 3
=
20
4 - 3
=