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소숫점: 1자리 덧셈21

1
2.1
+
2.7
=
4.8
2
3.2
+
8.7
=
11.9
3
4.9
+
1.6
=
6.5
4
3.8
+
3.1
=
6.9
5
2.1
+
2.3
=
4.4
6
2.9
+
9.4
=
12.3
7
6.3
+
3.6
=
9.9
8
3.3
+
6.3
=
9.6
9
6.1
+
4.6
=
10.7
10
7.8
+
3.6
=
11.4
11
1.4
+
3.1
=
4.5
12
1.4
+
8.2
=
9.6
13
3.8
+
3.1
=
6.9
14
1.1
+
4.4
=
5.5
15
5.7
+
3.7
=
9.4