subtraction/without-borrowing/expert · セット 49
20 problems
名前：
クラス:
日付：
1
5 - 4
=
2
2 - 1
=
3
5 - 1
=
4
2 - 1
=
5
5 - 1
=
6
3 - 1
=
7
5 - 3
=
8
4 - 3
=
9
6 - 5
=
10
4 - 2
=
11
8 - 6
=
12
8 - 7
=
13
6 - 3
=
14
9 - 7
=
15
5 - 1
=
16
5 - 3
=
17
8 - 2
=
18
8 - 6
=
19
4 - 3
=
20
8 - 3
=