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소수점 1자리 덧셈

1
4.5
+
7.4
=
11.9
2
7.7
+
1.5
=
9.2
3
1.4
+
9.3
=
10.7
4
3.1
+
4.8
=
7.9
5
6.9
+
9.1
=
16
6
2.3
+
9.4
=
11.7
7
3.8
+
3.9
=
7.7
8
1.5
+
7.6
=
9.1
9
1.5
+
1.4
=
2.9
10
1.1
+
2.9
=
4
11
8.2
+
2.9
=
11.1
12
2.5
+
4.2
=
6.7
13
2.7
+
1.2
=
3.9
14
3.4
+
8.4
=
11.8
15
2.5
+
6.1
=
8.6