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소수점 1자리 덧셈

1
3.1
+
8.1
=
11.2
2
5.9
+
2.8
=
8.7
3
7.6
+
3.4
=
11
4
1.4
+
2.2
=
3.6
5
9.5
+
2.8
=
12.3
6
5.5
+
3.1
=
8.6
7
1.2
+
2.6
=
3.8
8
6.1
+
3.7
=
9.8
9
3.6
+
7.2
=
10.8
10
9.6
+
2.7
=
12.3
11
2.1
+
2.6
=
4.7
12
3.7
+
4.9
=
8.6
13
2.9
+
1.3
=
4.2
14
6.4
+
7.3
=
13.7
15
4.6
+
3.1
=
7.7