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소숫점: 1자리 덧셈21

1
2.1
+
7.4
=
9.5
2
5.5
+
8.1
=
13.6
3
2.5
+
3.6
=
6.1
4
3.2
+
9.6
=
12.8
5
3.3
+
2.2
=
5.5
6
1.5
+
6.7
=
8.2
7
7.2
+
1.8
=
9
8
5.1
+
2.1
=
7.2
9
8.6
+
2.8
=
11.4
10
7.3
+
1.1
=
8.4
11
7.4
+
1.3
=
8.7
12
5.3
+
7.1
=
12.4
13
2.2
+
5.2
=
7.4
14
9.2
+
4.6
=
13.8
15
9.3
+
4.5
=
13.8