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소수점 1자리 덧셈

1
3.3
+
1.4
=
4.7
2
2.1
+
6.4
=
8.5
3
2.8
+
4.2
=
7
4
1.6
+
3.7
=
5.3
5
7.1
+
6.9
=
14
6
5.3
+
3.4
=
8.7
7
3.8
+
2.1
=
5.9
8
9.3
+
6.6
=
15.9
9
4.7
+
4.9
=
9.6
10
8.1
+
5.5
=
13.6
11
6.6
+
2.3
=
8.9
12
9.3
+
3.7
=
13
13
3.1
+
3.9
=
7
14
3.2
+
1.2
=
4.4
15
4.5
+
4.9
=
9.4