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소수점 1자리 덧셈

1
3.9
+
4.2
=
8.1
2
4.1
+
7.2
=
11.3
3
1.4
+
1.1
=
2.5
4
6.1
+
2.7
=
8.8
5
5.2
+
8.1
=
13.3
6
1.9
+
1.9
=
3.8
7
3.7
+
1.6
=
5.3
8
1.5
+
5.7
=
7.2
9
7.8
+
9.6
=
17.4
10
1.1
+
3.3
=
4.4
11
4.1
+
2.9
=
7
12
4.8
+
1.2
=
6
13
1.9
+
1.9
=
3.8
14
5.5
+
5.1
=
10.6
15
4.8
+
2.4
=
7.2