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소숫점: 1자리 덧셈30

1
3.2
+
2.8
=
6
2
5.5
+
5.4
=
10.9
3
2.3
+
3.5
=
5.8
4
8.5
+
1.3
=
9.8
5
2.4
+
5.5
=
7.9
6
8.3
+
1.5
=
9.8
7
5.4
+
1.4
=
6.8
8
3.7
+
2.4
=
6.1
9
8.2
+
3.3
=
11.5
10
3.8
+
2.3
=
6.1
11
4.5
+
7.4
=
11.9
12
1.1
+
3.3
=
4.4
13
7.4
+
8.9
=
16.3
14
1.8
+
2.2
=
4
15
8.4
+
3.4
=
11.8