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소수점 1자리 덧셈

1
3.9
+
2.4
=
6.3
2
8.2
+
9.2
=
17.4
3
3.2
+
3.1
=
6.3
4
5.4
+
8.9
=
14.3
5
8.3
+
9.4
=
17.7
6
5.9
+
3.2
=
9.1
7
2.8
+
5.2
=
8
8
6.2
+
9.2
=
15.4
9
2.9
+
3.2
=
6.1
10
5.6
+
8.5
=
14.1
11
2.2
+
4.8
=
7
12
3.1
+
7.3
=
10.4
13
6.2
+
3.2
=
9.4
14
2.7
+
4.6
=
7.3
15
4.3
+
4.3
=
8.6