(1)4819-2637×1642 =
(2)755+45÷9 =
(3)43×65×63 =
(4)648÷24÷3 =
(5)99×18÷6 =
(6)48÷8×49 =
(7)4089+1365-1947 =
(8)57×81÷9 =
(9)1064-81-502 =
(1)4819-2637×1642 =
(2)755+45÷9 =
(3)43×65×63 =
(4)648÷24÷3 =
(5)99×18÷6 =
(6)48÷8×49 =
(7)4089+1365-1947 =
(8)57×81÷9 =
(9)1064-81-502 =