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소수점 1자리 덧셈

1
4.7
+
3.1
=
7.8
2
9.1
+
8.9
=
18
3
1.1
+
9.9
=
11
4
9.2
+
6.6
=
15.8
5
2.3
+
4.6
=
6.9
6
9.5
+
6.9
=
16.4
7
1.5
+
9.3
=
10.8
8
4.5
+
1.2
=
5.7
9
3.5
+
6.4
=
9.9
10
1.4
+
6.1
=
7.5
11
5.7
+
6.3
=
12
12
5.4
+
4.1
=
9.5
13
7.4
+
9.2
=
16.6
14
2.2
+
4.7
=
6.9
15
3.2
+
3.3
=
6.5