subtraction/with-borrowing/hard · セット 45
20 problems
名前：
クラス:
日付：
1
3 - 2
=
2
3 - 2
=
3
3 - 1
=
4
2 - 1
=
5
2 - 1
=
6
7 - 2
=
7
3 - 1
=
8
6 - 3
=
9
6 - 5
=
10
9 - 8
=
11
6 - 2
=
12
8 - 2
=
13
6 - 5
=
14
2 - 1
=
15
7 - 2
=
16
7 - 6
=
17
8 - 7
=
18
5 - 1
=
19
3 - 1
=
20
4 - 1
=