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소숫점: 1자리 덧셈21

1
2.1
+
3.2
=
5.3
2
7.1
+
5.9
=
13
3
2.1
+
6.2
=
8.3
4
8.5
+
6.1
=
14.6
5
1.6
+
8.5
=
10.1
6
1.7
+
6.3
=
8
7
9.1
+
2.8
=
11.9
8
3.6
+
6.3
=
9.9
9
6.3
+
4.6
=
10.9
10
3.5
+
8.6
=
12.1
11
3.5
+
9.7
=
13.2
12
3.3
+
1.6
=
4.9
13
6.4
+
2.1
=
8.5
14
3.3
+
6.7
=
10
15
1.6
+
3.3
=
4.9