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소숫점: 1자리 덧셈

1
4.2
+
2.3
=
6.5
2
4.2
+
1.4
=
5.6
3
7.4
+
1.7
=
9.1
4
5.3
+
6.4
=
11.7
5
2.6
+
2.5
=
5.1
6
3.2
+
3.6
=
6.8
7
5.2
+
7.1
=
12.3
8
1.7
+
3.1
=
4.8
9
5.8
+
3.4
=
9.2
10
4.2
+
4.1
=
8.3
11
1.5
+
9.6
=
11.1
12
3.8
+
7.5
=
11.3
13
2.1
+
2.5
=
4.6
14
9.2
+
3.8
=
13
15
3.4
+
1.8
=
5.2