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소수점 1자리 덧셈

1
4.6
+
8.9
=
13.5
2
8.4
+
4.9
=
13.3
3
5.4
+
1.7
=
7.1
4
8.6
+
3.8
=
12.4
5
4.8
+
4.6
=
9.4
6
3.8
+
3.4
=
7.2
7
5.1
+
5.8
=
10.9
8
5.4
+
8.3
=
13.7
9
5.2
+
6.5
=
11.7
10
9.5
+
8.8
=
18.3
11
4.8
+
9.5
=
14.3
12
6.4
+
1.2
=
7.6
13
4.2
+
2.5
=
6.7
14
8.2
+
5.6
=
13.8
15
3.1
+
5.2
=
8.3