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소수점 1자리 덧셈

1
3.9
+
2.6
=
6.5
2
1.7
+
2.6
=
4.3
3
2.1
+
6.1
=
8.2
4
3.4
+
9.4
=
12.8
5
2.5
+
8.3
=
10.8
6
4.8
+
1.1
=
5.9
7
7.5
+
9.3
=
16.8
8
9.6
+
6.1
=
15.7
9
8.3
+
3.3
=
11.6
10
8.9
+
3.5
=
12.4
11
5.5
+
7.8
=
13.3
12
4.6
+
5.2
=
9.8
13
3.5
+
4.4
=
7.9
14
5.5
+
1.1
=
6.6
15
5.8
+
3.6
=
9.4