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소수점 1자리 덧셈

1
3.1
+
9.3
=
12.4
2
4.1
+
4.9
=
9
3
4.3
+
8.7
=
13
4
2.5
+
3.3
=
5.8
5
6.3
+
2.3
=
8.6
6
9.2
+
3.5
=
12.7
7
1.6
+
4.1
=
5.7
8
6.5
+
1.2
=
7.7
9
4.2
+
8.3
=
12.5
10
3.7
+
8.3
=
12
11
5.7
+
4.5
=
10.2
12
8.4
+
1.4
=
9.8
13
4.7
+
7.4
=
12.1
14
5.3
+
8.1
=
13.4
15
4.2
+
1.6
=
5.8