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소수점 1자리 덧셈

1
4.2
+
4.7
=
8.9
2
2.9
+
2.6
=
5.5
3
2.2
+
1.5
=
3.7
4
2.4
+
3.4
=
5.8
5
3.8
+
3.6
=
7.4
6
6.4
+
7.2
=
13.6
7
5.5
+
3.5
=
9
8
3.6
+
6.1
=
9.7
9
4.3
+
9.3
=
13.6
10
8.1
+
2.1
=
10.2
11
1.9
+
3.6
=
5.5
12
3.6
+
3.1
=
6.7
13
6.9
+
5.5
=
12.4
14
7.3
+
2.2
=
9.5
15
2.9
+
4.4
=
7.3