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소숫점: 1자리 덧셈30

1
3.6
+
6.9
=
10.5
2
1.8
+
1.5
=
3.3
3
1.7
+
4.8
=
6.5
4
1.5
+
2.1
=
3.6
5
8.6
+
3.7
=
12.3
6
7.7
+
5.9
=
13.6
7
1.4
+
6.4
=
7.8
8
2.4
+
3.2
=
5.6
9
3.5
+
2.5
=
6
10
1.6
+
6.8
=
8.4
11
5.3
+
4.1
=
9.4
12
6.6
+
4.1
=
10.7
13
1.2
+
7.8
=
9
14
3.3
+
8.1
=
11.4
15
6.6
+
6.2
=
12.8