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소숫점: 1자리 덧셈21

1
2.1
+
6.2
=
8.3
2
4.9
+
2.1
=
7
3
5.4
+
1.3
=
6.7
4
6.1
+
6.6
=
12.7
5
5.6
+
7.5
=
13.1
6
3.7
+
2.1
=
5.8
7
8.3
+
8.7
=
17
8
2.7
+
2.8
=
5.5
9
4.1
+
4.7
=
8.8
10
4.7
+
2.6
=
7.3
11
3.9
+
4.5
=
8.4
12
1.4
+
3.4
=
4.8
13
4.6
+
9.6
=
14.2
14
3.3
+
7.5
=
10.8
15
4.7
+
5.7
=
10.4