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소수점 1자리 덧셈

1
5.9
+
2.8
=
8.7
2
2.1
+
2.3
=
4.4
3
2.6
+
1.2
=
3.8
4
7.4
+
3.9
=
11.3
5
4.7
+
9.9
=
14.6
6
4.3
+
6.4
=
10.7
7
3.4
+
5.7
=
9.1
8
4.2
+
7.3
=
11.5
9
3.9
+
6.1
=
10
10
6.3
+
3.1
=
9.4
11
4.1
+
8.7
=
12.8
12
5.9
+
8.2
=
14.1
13
6.3
+
5.2
=
11.5
14
9.4
+
6.2
=
15.6
15
8.6
+
4.2
=
12.8