-
.
凑十法
5+6 =
5+7 =
6+6 =
5+8 =
6+8 =
3+8
=
3+9
=
7+6
=
6+9
=
.
6+8 =
4+8 =
4+9 =
6+8 =
7+7 =
.
8+8
=
8+5 =
8+4 =
9+3 =
9+8 =
8+6
=
8+3
=
7+5
=
12
—
8 =
13
—
7
=
.
9+9 =
9+5 =
9+4 =
7+4 =
13
—
9 =
15
—
7
=
.
12
—
5
=
15
—
6 =
16
—
8 =
16
—
8
=
17
—
8 =
15
—
8 =
18
—
9 =
15
—
9 =
14
—
7 =
.
14
—
5 =
—
8 =
—
9 =
—
6 =
—
6 =
16
17
15
14