けいさんれんしゅう
11 + 7
=
2 - 1
=
12 - 2
=
2 + 13
=
15 + 3
=
17 - 4
=
7 + 7
=
16 - 5
=
16 + 2
=
18 + 1
=
3 - 1
=
8 + 10
=
9 - 3
=
14 - 1
=
5 + 4
=
16 - 1
=
15 + 2
=
16 + 1
=
5 - 2
=
4 + 6
=
せいかい
まちがい