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소숫점: 1자리 덧셈

1
6.6
+
6.2
=
12.8
2
6.3
+
6.3
=
12.6
3
3.5
+
8.3
=
11.8
4
2.5
+
5.3
=
7.8
5
5.1
+
6.9
=
12
6
1.3
+
3.1
=
4.4
7
3.4
+
1.4
=
4.8
8
3.5
+
1.2
=
4.7
9
3.8
+
4.8
=
8.6
10
9.6
+
9.3
=
18.9
11
4.4
+
8.1
=
12.5
12
2.8
+
7.7
=
10.5
13
2.9
+
5.8
=
8.7
14
5.5
+
2.8
=
8.3
15
2.5
+
1.1
=
3.6