subtraction/basic/easy · セット 21
20 problems
名前：
クラス:
日付：
1
10 - 2
=
2
2 - 1
=
3
6 - 4
=
4
6 - 2
=
5
9 - 6
=
6
10 - 4
=
7
6 - 1
=
8
10 - 3
=
9
7 - 6
=
10
4 - 2
=
11
3 - 1
=
12
5 - 1
=
13
9 - 2
=
14
6 - 3
=
15
10 - 5
=
16
8 - 4
=
17
9 - 3
=
18
3 - 2
=
19
7 - 2
=
20
5 - 4
=