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소수점 1자리 덧셈

1
1.4
+
6.4
=
7.8
2
6.2
+
3.6
=
9.8
3
8.3
+
3.3
=
11.6
4
6.4
+
9.4
=
15.8
5
1.2
+
1.1
=
2.3
6
2.7
+
2.9
=
5.6
7
2.5
+
2.3
=
4.8
8
9.9
+
3.2
=
13.1
9
4.8
+
7.5
=
12.3
10
4.5
+
3.4
=
7.9
11
7.5
+
2.4
=
9.9
12
8.5
+
9.4
=
17.9
13
2.6
+
3.5
=
6.1
14
6.4
+
5.4
=
11.8
15
6.1
+
2.4
=
8.5