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소수점 1자리 덧셈

1
3.1
+
5.4
=
8.5
2
8.4
+
4.2
=
12.6
3
3.9
+
2.3
=
6.2
4
7.5
+
7.9
=
15.4
5
2.1
+
6.5
=
8.6
6
5.9
+
5.9
=
11.8
7
1.6
+
1.9
=
3.5
8
5.6
+
1.5
=
7.1
9
4.8
+
4.5
=
9.3
10
2.8
+
2.3
=
5.1
11
1.4
+
2.7
=
4.1
12
6.9
+
9.3
=
16.2
13
4.5
+
6.1
=
10.6
14
9.4
+
5.4
=
14.8
15
3.6
+
8.6
=
12.2