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소수점 1자리 덧셈

1
4.2
+
8.4
=
12.6
2
2.2
+
4.1
=
6.3
3
3.1
+
3.4
=
6.5
4
7.2
+
4.1
=
11.3
5
1.2
+
9.5
=
10.7
6
7.7
+
2.1
=
9.8
7
8.5
+
4.1
=
12.6
8
1.6
+
1.4
=
3
9
3.9
+
5.7
=
9.6
10
8.5
+
9.3
=
17.8
11
4.9
+
6.2
=
11.1
12
2.5
+
3.5
=
6
13
6.1
+
6.7
=
12.8
14
1.8
+
9.3
=
11.1
15
3.9
+
4.2
=
8.1
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