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소숫점: 1자리 덧셈21

1
2.1
+
1.5
=
3.6
2
2.5
+
2.5
=
5
3
2.6
+
2.7
=
5.3
4
5.1
+
5.4
=
10.5
5
5.1
+
5.4
=
10.5
6
2.5
+
4.4
=
6.9
7
6.5
+
6.5
=
13
8
7.2
+
1.1
=
8.3
9
1.2
+
5.4
=
6.6
10
3.4
+
2.3
=
5.7
11
1.4
+
1.3
=
2.7
12
8.9
+
2.4
=
11.3
13
5.1
+
1.3
=
6.4
14
3.7
+
4.5
=
8.2
15
1.4
+
4.6
=
6