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소수점 1자리 덧셈

1
5.5
+
7.4
=
12.9
2
8.1
+
9.2
=
17.3
3
1.8
+
4.2
=
6
4
8.2
+
5.6
=
13.8
5
4.1
+
6.7
=
10.8
6
3.3
+
5.1
=
8.4
7
6.2
+
4.2
=
10.4
8
2.5
+
9.4
=
11.9
9
4.9
+
7.4
=
12.3
10
8.1
+
2.4
=
10.5
11
3.1
+
8.5
=
11.6
12
9.3
+
4.2
=
13.5
13
7.4
+
4.5
=
11.9
14
3.3
+
6.2
=
9.5
15
8.3
+
6.5
=
14.8