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소숫점: 1자리 덧셈

1
2.4
+
1.2
=
3.6
2
2.1
+
5.5
=
7.6
3
1.2
+
2.5
=
3.7
4
7.8
+
1.2
=
9
5
7.4
+
5.2
=
12.6
6
2.6
+
1.2
=
3.8
7
8.1
+
2.9
=
11
8
4.5
+
7.4
=
11.9
9
2.3
+
1.5
=
3.8
10
2.1
+
5.2
=
7.3
11
5.9
+
3.6
=
9.5
12
3.3
+
9.9
=
13.2
13
5.9
+
1.9
=
7.8
14
6.6
+
3.4
=
10
15
3.5
+
1.4
=
4.9