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소수점 1자리 덧셈

1
2.8
+
2.4
=
5.2
2
2.6
+
2.7
=
5.3
3
3.6
+
3.8
=
7.4
4
3.9
+
8.1
=
12
5
7.2
+
5.2
=
12.4
6
1.2
+
6.5
=
7.7
7
5.2
+
1.9
=
7.1
8
4.4
+
7.2
=
11.6
9
5.8
+
9.3
=
15.1
10
4.4
+
1.3
=
5.7
11
2.9
+
5.7
=
8.6
12
8.4
+
6.6
=
15
13
2.6
+
8.1
=
10.7
14
7.2
+
4.7
=
11.9
15
7.4
+
6.7
=
14.1