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소숫점: 1자리 덧셈20

1
2.7
+
2.3
=
5
2
4.4
+
5.3
=
9.7
3
1.8
+
2.7
=
4.5
4
1.4
+
5.6
=
7
5
9.1
+
3.2
=
12.3
6
4.7
+
9.4
=
14.1
7
2.4
+
4.9
=
7.3
8
5.6
+
3.4
=
9
9
1.9
+
9.4
=
11.3
10
9.5
+
2.7
=
12.2
11
8.1
+
4.2
=
12.3
12
5.4
+
6.6
=
12
13
8.2
+
1.2
=
9.4
14
4.2
+
1.2
=
5.4
15
5.9
+
4.3
=
10.2