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소수점 1자리 덧셈

1
3.9
+
4.5
=
8.4
2
6.5
+
5.9
=
12.4
3
6.3
+
8.3
=
14.6
4
7.7
+
3.8
=
11.5
5
1.1
+
3.7
=
4.8
6
1.7
+
9.5
=
11.2
7
4.7
+
4.5
=
9.2
8
6.4
+
7.8
=
14.2
9
3.8
+
6.5
=
10.3
10
8.8
+
1.8
=
10.6
11
9.1
+
8.4
=
17.5
12
5.5
+
9.8
=
15.3
13
1.1
+
5.8
=
6.9
14
5.3
+
6.3
=
11.6
15
8.2
+
5.2
=
13.4