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소숫점: 1자리 덧셈30

1
3.1
+
3.5
=
6.6
2
4.3
+
4.9
=
9.2
3
6.2
+
7.5
=
13.7
4
6.1
+
1.8
=
7.9
5
9.4
+
1.2
=
10.6
6
3.6
+
1.3
=
4.9
7
1.1
+
8.6
=
9.7
8
1.3
+
9.8
=
11.1
9
8.1
+
4.1
=
12.2
10
4.2
+
9.3
=
13.5
11
5.9
+
6.3
=
12.2
12
3.4
+
6.5
=
9.9
13
2.4
+
3.4
=
5.8
14
4.4
+
4.2
=
8.6
15
2.1
+
7.5
=
9.6