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소수점 1자리 덧셈

1
2.5
+
3.9
=
6.4
2
5.6
+
6.4
=
12
3
7.7
+
3.2
=
10.9
4
9.5
+
3.1
=
12.6
5
5.7
+
3.9
=
9.6
6
1.6
+
3.4
=
5
7
5.1
+
6.6
=
11.7
8
6.1
+
2.5
=
8.6
9
6.8
+
2.5
=
9.3
10
6.9
+
8.1
=
15
11
1.3
+
3.9
=
5.2
12
6.5
+
7.2
=
13.7
13
2.2
+
3.2
=
5.4
14
4.6
+
1.3
=
5.9
15
8.8
+
2.3
=
11.1