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소숫점: 1자리 덧셈25

1
2.5
+
6.5
=
9
2
6.2
+
6.1
=
12.3
3
2.4
+
7.5
=
9.9
4
7.5
+
5.6
=
13.1
5
5.4
+
9.3
=
14.7
6
7.1
+
4.5
=
11.6
7
3.1
+
3.2
=
6.3
8
1.6
+
3.4
=
5
9
7.4
+
7.4
=
14.8
10
2.9
+
7.5
=
10.4
11
9.1
+
2.7
=
11.8
12
5.2
+
2.4
=
7.6
13
2.3
+
4.5
=
6.8
14
8.5
+
7.4
=
15.9
15
1.7
+
5.3
=
7