subtraction/basic/medium · セット 73
20 problems
名前：
クラス:
日付：
1
9 - 2
=
2
2 - 1
=
3
9 - 5
=
4
4 - 3
=
5
9 - 6
=
6
5 - 3
=
7
5 - 1
=
8
10 - 3
=
9
10 - 9
=
10
8 - 2
=
11
8 - 7
=
12
10 - 4
=
13
9 - 4
=
14
6 - 4
=
15
7 - 1
=
16
8 - 6
=
17
7 - 6
=
18
3 - 1
=
19
8 - 1
=
20
4 - 1
=