subtraction/without-borrowing/expert · 套题 58
20 problems
姓名:
班级:
日期:
1
5 - 1
=
2
5 - 4
=
3
2 - 1
=
4
3 - 2
=
5
4 - 1
=
6
8 - 7
=
7
2 - 1
=
8
9 - 4
=
9
3 - 1
=
10
6 - 3
=
11
2 - 1
=
12
8 - 5
=
13
2 - 1
=
14
7 - 4
=
15
8 - 2
=
16
3 - 1
=
17
6 - 4
=
18
3 - 1
=
19
2 - 1
=
20
9 - 1
=