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소숫점: 1자리 덧셈20

1
2.2
+
4.1
=
6.3
2
9.1
+
9.6
=
18.7
3
1.4
+
7.5
=
8.9
4
8.7
+
9.4
=
18.1
5
4.8
+
4.7
=
9.5
6
8.4
+
9.6
=
18
7
4.9
+
3.1
=
8
8
2.2
+
3.4
=
5.6
9
7.6
+
2.9
=
10.5
10
4.5
+
7.2
=
11.7
11
9.9
+
2.3
=
12.2
12
2.3
+
7.3
=
9.6
13
6.4
+
4.7
=
11.1
14
3.5
+
4.5
=
8
15
2.9
+
8.6
=
11.5