计算下面各题,能简便的要简便计算.×× (+)×27 ×6+×6+× ×× (+)×36××50 [4﹣(﹣)]×.
÷16== : == [最后一个空填小数].
0.6==12÷ = : = %
: ==12: = %
:16=9: =0.75= %
10: =4÷8== %= 成.