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소수점 1자리 덧셈

1
2.8
+
1.3
=
4.1
2
4.7
+
4.6
=
9.3
3
1.2
+
9.9
=
11.1
4
3.9
+
6.6
=
10.5
5
3.7
+
5.6
=
9.3
6
6.5
+
6.9
=
13.4
7
3.4
+
4.6
=
8
8
3.8
+
1.4
=
5.2
9
9.3
+
3.9
=
13.2
10
2.8
+
9.1
=
11.9
11
7.7
+
1.2
=
8.9
12
3.1
+
3.3
=
6.4
13
7.7
+
1.6
=
9.3
14
9.9
+
1.1
=
11
15
7.5
+
1.3
=
8.8