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소숫점: 1자리 덧셈60

1
6.1
+
8.7
=
14.8
2
4.4
+
7.2
=
11.6
3
8.4
+
2.5
=
10.9
4
2.8
+
5.5
=
8.3
5
5.2
+
2.2
=
7.4
6
4.5
+
8.3
=
12.8
7
2.7
+
3.1
=
5.8
8
1.4
+
3.5
=
4.9
9
2.4
+
9.8
=
12.2
10
4.3
+
4.4
=
8.7
11
2.4
+
1.9
=
4.3
12
2.8
+
4.4
=
7.2
13
7.6
+
4.3
=
11.9
14
9.5
+
6.4
=
15.9
15
3.5
+
2.9
=
6.4