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소숫점: 1자리 덧셈54

1
5.4
+
7.4
=
12.8
2
6.8
+
4.1
=
10.9
3
2.3
+
3.1
=
5.4
4
1.4
+
3.1
=
4.5
5
2.5
+
8.1
=
10.6
6
3.1
+
5.7
=
8.8
7
4.5
+
3.4
=
7.9
8
8.4
+
5.9
=
14.3
9
8.1
+
5.3
=
13.4
10
4.8
+
7.2
=
12
11
2.4
+
7.7
=
10.1
12
2.5
+
5.5
=
8
13
4.1
+
6.6
=
10.7
14
3.6
+
4.9
=
8.5
15
1.5
+
4.3
=
5.8