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소수점 1자리 덧셈

1
3.7
+
4.2
=
7.9
2
8.4
+
9.8
=
18.2
3
7.6
+
3.8
=
11.4
4
4.2
+
9.7
=
13.9
5
4.5
+
5.7
=
10.2
6
2.8
+
3.4
=
6.2
7
9.9
+
6.9
=
16.8
8
4.2
+
5.4
=
9.6
9
3.3
+
3.1
=
6.4
10
7.4
+
4.1
=
11.5
11
1.3
+
6.6
=
7.9
12
1.5
+
3.2
=
4.7
13
7.5
+
2.2
=
9.7
14
5.3
+
3.1
=
8.4
15
2.3
+
4.9
=
7.2