けいさんれんしゅう
2 - 2
=
11 + 1
=
2 + 13
=
2 + 10
=
13 - 3
=
2 - 1
=
3 - 1
=
14 + 1
=
14 + 2
=
13 + 4
=
7 - 1
=
6 - 5
=
18 + 1
=
8 - 7
=
15 + 2
=
15 + 3
=
7 - 4
=
16 - 1
=
3 - 3
=
1 - 1
=
せいかい
まちがい