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소수점 1자리 덧셈

1
3.1
+
3.3
=
6.4
2
2.9
+
4.6
=
7.5
3
8.4
+
7.2
=
15.6
4
8.8
+
1.6
=
10.4
5
2.1
+
2.4
=
4.5
6
4.8
+
5.8
=
10.6
7
4.6
+
3.8
=
8.4
8
8.4
+
5.8
=
14.2
9
3.1
+
1.5
=
4.6
10
4.7
+
4.4
=
9.1
11
6.5
+
5.8
=
12.3
12
1.7
+
6.5
=
8.2
13
4.3
+
7.1
=
11.4
14
7.7
+
5.1
=
12.8
15
4.3
+
6.8
=
11.1