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소수점 1자리 덧셈

1
6.4
+
2.1
=
8.5
2
8.4
+
4.1
=
12.5
3
6.2
+
6.4
=
12.6
4
5.7
+
3.2
=
8.9
5
8.2
+
5.2
=
13.4
6
8.3
+
4.6
=
12.9
7
7.2
+
4.8
=
12
8
4.1
+
3.1
=
7.2
9
1.2
+
2.9
=
4.1
10
5.7
+
2.2
=
7.9
11
2.2
+
6.3
=
8.5
12
6.1
+
3.6
=
9.7
13
1.2
+
2.5
=
3.7
14
4.4
+
4.6
=
9
15
2.7
+
2.6
=
5.3