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소숫점: 1자리 덧셈20

1
2.4
+
3.1
=
5.5
2
7.1
+
7.5
=
14.6
3
3.4
+
1.4
=
4.8
4
3.7
+
5.1
=
8.8
5
6.2
+
2.5
=
8.7
6
7.2
+
6.2
=
13.4
7
9.1
+
2.4
=
11.5
8
6.5
+
7.2
=
13.7
9
1.9
+
4.8
=
6.7
10
5.6
+
4.9
=
10.5
11
2.2
+
5.3
=
7.5
12
5.6
+
6.2
=
11.8
13
7.4
+
7.5
=
14.9
14
1.9
+
2.4
=
4.3
15
8.2
+
2.8
=
11