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소숫점: 1자리 덧셈25

1
2.5
+
4.7
=
7.2
2
4.4
+
3.9
=
8.3
3
5.4
+
7.4
=
12.8
4
7.1
+
6.5
=
13.6
5
3.2
+
5.2
=
8.4
6
8.1
+
1.7
=
9.8
7
3.6
+
1.4
=
5
8
3.2
+
6.6
=
9.8
9
1.5
+
2.5
=
4
10
5.1
+
9.4
=
14.5
11
5.9
+
1.2
=
7.1
12
5.5
+
1.9
=
7.4
13
5.9
+
8.2
=
14.1
14
6.5
+
3.5
=
10
15
4.5
+
2.5
=
7