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소수점 1자리 덧셈

1
7.4
+
4.5
=
11.9
2
2.3
+
4.1
=
6.4
3
9.4
+
6.9
=
16.3
4
5.3
+
8.8
=
14.1
5
5.1
+
5.2
=
10.3
6
2.5
+
3.1
=
5.6
7
4.2
+
2.2
=
6.4
8
8.9
+
6.3
=
15.2
9
5.4
+
3.8
=
9.2
10
8.4
+
5.9
=
14.3
11
4.6
+
3.5
=
8.1
12
3.2
+
3.4
=
6.6
13
3.4
+
4.7
=
8.1
14
2.1
+
5.9
=
8
15
3.4
+
5.1
=
8.5