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