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소수점 1자리 덧셈

1
3.9
+
7.4
=
11.3
2
3.9
+
3.2
=
7.1
3
6.1
+
8.8
=
14.9
4
6.3
+
9.3
=
15.6
5
9.9
+
4.2
=
14.1
6
1.6
+
1.6
=
3.2
7
2.4
+
2.4
=
4.8
8
2.2
+
3.6
=
5.8
9
4.3
+
3.1
=
7.4
10
9.8
+
5.9
=
15.7
11
2.1
+
1.3
=
3.4
12
1.1
+
5.3
=
6.4
13
2.2
+
1.8
=
4
14
5.5
+
1.1
=
6.6
15
3.7
+
3.4
=
7.1