subtraction/without-borrowing/expert · セット 81
20 problems
名前：
クラス:
日付：
1
6 - 4
=
2
6 - 1
=
3
4 - 1
=
4
5 - 3
=
5
2 - 1
=
6
6 - 2
=
7
2 - 1
=
8
3 - 1
=
9
7 - 2
=
10
4 - 1
=
11
5 - 3
=
12
4 - 2
=
13
7 - 6
=
14
8 - 7
=
15
9 - 8
=
16
7 - 5
=
17
3 - 1
=
18
5 - 2
=
19
4 - 1
=
20
9 - 4
=