subtraction/basic/medium · セット 99
20 problems
名前：
クラス:
日付：
1
9 - 1
=
2
8 - 5
=
3
4 - 3
=
4
10 - 7
=
5
7 - 6
=
6
4 - 2
=
7
3 - 1
=
8
4 - 1
=
9
7 - 3
=
10
3 - 2
=
11
8 - 6
=
12
10 - 4
=
13
10 - 2
=
14
10 - 6
=
15
6 - 2
=
16
9 - 5
=
17
5 - 4
=
18
5 - 2
=
19
5 - 3
=
20
2 - 1
=