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소수점 1자리 덧셈

1
7.8
+
7.1
=
14.9
2
3.9
+
4.3
=
8.2
3
1.8
+
3.3
=
5.1
4
2.7
+
1.8
=
4.5
5
2.5
+
1.1
=
3.6
6
2.6
+
2.5
=
5.1
7
9.6
+
2.2
=
11.8
8
9.2
+
8.4
=
17.6
9
3.1
+
1.4
=
4.5
10
5.2
+
6.4
=
11.6
11
4.6
+
7.5
=
12.1
12
3.2
+
5.4
=
8.6
13
7.2
+
1.6
=
8.8
14
7.1
+
1.7
=
8.8
15
3.9
+
2.8
=
6.7