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소숫점: 1자리 덧셈21

1
2.1
+
3.4
=
5.5
2
2.3
+
9.7
=
12
3
4.5
+
6.3
=
10.8
4
2.8
+
3.6
=
6.4
5
5.5
+
9.8
=
15.3
6
5.8
+
8.2
=
14
7
4.2
+
7.8
=
12
8
3.8
+
6.1
=
9.9
9
3.4
+
9.5
=
12.9
10
4.7
+
5.3
=
10
11
2.4
+
4.6
=
7
12
5.8
+
7.5
=
13.3
13
5.3
+
2.3
=
7.6
14
7.5
+
7.3
=
14.8
15
3.6
+
2.3
=
5.9