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소숫점: 1자리 덧셈54

1
5.4
+
7.4
=
12.8
2
4.6
+
1.1
=
5.7
3
6.2
+
4.9
=
11.1
4
5.5
+
1.2
=
6.7
5
3.1
+
6.7
=
9.8
6
4.3
+
7.5
=
11.8
7
7.2
+
4.7
=
11.9
8
6.3
+
5.4
=
11.7
9
1.5
+
7.1
=
8.6
10
4.1
+
8.3
=
12.4
11
3.6
+
1.4
=
5
12
4.6
+
2.4
=
7
13
6.6
+
3.9
=
10.5
14
1.1
+
9.2
=
10.3
15
6.1
+
2.4
=
8.5