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소수점 1자리 덧셈

1
3.9
+
5.4
=
9.3
2
1.9
+
3.1
=
5
3
3.6
+
3.1
=
6.7
4
4.4
+
8.4
=
12.8
5
1.2
+
3.1
=
4.3
6
3.9
+
1.3
=
5.2
7
5.7
+
2.6
=
8.3
8
7.4
+
6.5
=
13.9
9
4.5
+
9.1
=
13.6
10
2.9
+
7.7
=
10.6
11
3.9
+
1.6
=
5.5
12
2.5
+
1.5
=
4
13
8.8
+
3.4
=
12.2
14
1.3
+
1.9
=
3.2
15
3.1
+
5.3
=
8.4
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