balance-scale/subtraction-easy · セット 1
20 problems
名前：
クラス:
日付：
1
[2 + ?] 7
=
2
[1 + 2 + ?] 8
=
3
[1 + 1 + ?] 4
=
4
[?] 12
=
5
[1 + 3 + ?] 11
=
6
[?] 7
=
7
[1 + ?] 6
=
8
[?] 9
=
9
[1 + ?] 5
=
10
[2 + ?] 9
=
11
[?] 10
=
12
[4 + ?] 12
=
13
[2 + 1 + ?] 8
=
14
[2 + 2 + ?] 10
=
15
[?] 13
=
16
[3 + 2 + ?] 9
=
17
[?] 5
=
18
[2 + ?] 13
=
19
[2 + ?] 10
=
20
[?] 8
=