subtraction/without-borrowing/expert · セット 66
20 problems
名前：
クラス:
日付：
1
6 - 1
=
2
4 - 2
=
3
2 - 1
=
4
5 - 2
=
5
6 - 3
=
6
9 - 3
=
7
4 - 2
=
8
8 - 1
=
9
7 - 1
=
10
8 - 2
=
11
3 - 2
=
12
6 - 3
=
13
4 - 2
=
14
3 - 1
=
15
9 - 3
=
16
7 - 1
=
17
4 - 1
=
18
2 - 1
=
19
9 - 7
=
20
4 - 3
=