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소수점 1자리 덧셈

1
4.2
+
8.4
=
12.6
2
2.4
+
4.5
=
6.9
3
6.6
+
2.8
=
9.4
4
5.4
+
2.6
=
8
5
3.7
+
4.8
=
8.5
6
1.3
+
1.5
=
2.8
7
4.9
+
2.4
=
7.3
8
5.2
+
3.6
=
8.8
9
3.7
+
4.9
=
8.6
10
3.4
+
7.8
=
11.2
11
5.8
+
9.8
=
15.6
12
1.9
+
3.7
=
5.6
13
5.4
+
9.6
=
15
14
6.1
+
8.9
=
15
15
4.2
+
4.1
=
8.3