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소숫점: 1자리 덧셈21

1
2.1
+
1.5
=
3.6
2
9.6
+
7.1
=
16.7
3
5.5
+
5.3
=
10.8
4
8.6
+
5.5
=
14.1
5
7.9
+
3.6
=
11.5
6
2.3
+
8.7
=
11
7
4.6
+
7.1
=
11.7
8
3.1
+
2.7
=
5.8
9
8.1
+
7.4
=
15.5
10
1.7
+
4.7
=
6.4
11
6.3
+
8.2
=
14.5
12
7.6
+
6.3
=
13.9
13
5.4
+
2.5
=
7.9
14
5.7
+
1.4
=
7.1
15
6.4
+
6.5
=
12.9