subtraction/without-borrowing/expert · セット 42
20 problems
名前：
クラス:
日付：
1
9 - 8
=
2
9 - 7
=
3
7 - 3
=
4
4 - 1
=
5
7 - 5
=
6
3 - 1
=
7
7 - 6
=
8
3 - 2
=
9
6 - 5
=
10
4 - 2
=
11
5 - 4
=
12
4 - 3
=
13
9 - 2
=
14
3 - 2
=
15
7 - 1
=
16
4 - 1
=
17
3 - 2
=
18
5 - 4
=
19
6 - 1
=
20
2 - 1
=