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소수점 1자리 덧셈

1
4.2
+
4.1
=
8.3
2
3.1
+
7.4
=
10.5
3
4.1
+
7.4
=
11.5
4
6.6
+
8.4
=
15
5
9.2
+
3.2
=
12.4
6
4.3
+
3.1
=
7.4
7
4.2
+
7.5
=
11.7
8
3.1
+
4.4
=
7.5
9
8.3
+
1.9
=
10.2
10
2.6
+
9.3
=
11.9
11
7.1
+
2.8
=
9.9
12
7.6
+
3.8
=
11.4
13
4.9
+
5.2
=
10.1
14
4.2
+
4.7
=
8.9
15
2.7
+
6.8
=
9.5