3.82,5.6…,0.35,0.222,3.2727……,5.666
0.3535, , 2.75,0.5757,4.9393,
循环小数:
有限小数:
x
36
1.8
y
24
9
15
60
18
1.2
0.4
0.5
5×120=600
54+80=134