先用计算器算出每组前四题的得数,再根据规律填写后两题横线上的数.
(1)8×9=________
88×99=________
888×999=______________
8888×9999=______________
______×______=__________
______×______=__________
(2)(10-1)÷9=________
(200-2)÷9=________
(3000-3)÷9=________
(40000-4)÷9=________
_____________÷9=______
_____________÷9=______