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소숫점: 1자리 덧셈30

1
3.9
+
4.6
=
8.5
2
2.1
+
4.5
=
6.6
3
5.2
+
2.3
=
7.5
4
2.3
+
7.8
=
10.1
5
6.1
+
8.5
=
14.6
6
2.8
+
5.3
=
8.1
7
9.8
+
5.4
=
15.2
8
9.8
+
4.7
=
14.5
9
1.5
+
4.7
=
6.2
10
1.6
+
6.1
=
7.7
11
4.2
+
4.9
=
9.1
12
1.2
+
1.2
=
2.4
13
5.4
+
5.2
=
10.6
14
9.5
+
4.9
=
14.4
15
1.2
+
2.5
=
3.7