用竖式计算(①,②验算)①816÷8= ②308÷7= ③119÷7=④704×8= ⑤465×9= ⑥888÷6=
x : =:
x - x=18.7
15.8-(6+÷12.5%)
10-÷×1
325×0.36+6.75×36