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소수점 1자리 덧셈

1
8.1
+
7.4
=
15.5
2
7.3
+
5.5
=
12.8
3
7.4
+
4.2
=
11.6
4
2.5
+
7.2
=
9.7
5
2.9
+
4.9
=
7.8
6
8.5
+
1.2
=
9.7
7
1.6
+
5.9
=
7.5
8
3.8
+
1.3
=
5.1
9
9.2
+
1.7
=
10.9
10
9.3
+
2.8
=
12.1
11
4.2
+
1.4
=
5.6
12
5.4
+
2.6
=
8
13
1.3
+
4.8
=
6.1
14
6.5
+
4.9
=
11.4
15
4.8
+
5.4
=
10.2