subtraction/without-borrowing/expert · セット 43
20 problems
名前：
クラス:
日付：
1
2 - 1
=
2
5 - 1
=
3
7 - 1
=
4
2 - 1
=
5
9 - 2
=
6
8 - 5
=
7
8 - 1
=
8
8 - 2
=
9
2 - 1
=
10
4 - 3
=
11
9 - 4
=
12
6 - 3
=
13
6 - 2
=
14
4 - 1
=
15
4 - 2
=
16
9 - 7
=
17
9 - 1
=
18
5 - 3
=
19
4 - 1
=
20
8 - 4
=