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소수점 1자리 덧셈

1
2.7
+
3.7
=
6.4
2
4.3
+
1.2
=
5.5
3
6.6
+
3.9
=
10.5
4
5.3
+
7.2
=
12.5
5
2.5
+
4.9
=
7.4
6
8.6
+
6.4
=
15
7
2.3
+
2.1
=
4.4
8
1.4
+
4.3
=
5.7
9
4.2
+
4.2
=
8.4
10
4.2
+
3.2
=
7.4
11
6.6
+
1.4
=
8
12
5.2
+
3.1
=
8.3
13
9.5
+
9.4
=
18.9
14
3.7
+
3.6
=
7.3
15
8.4
+
1.5
=
9.9