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用简便方法计算下面各题.67×47+47×33423-59+177-141382×101-38225×44270÷6÷525×32×125644+399301×54-6×9.

题目详情
用简便方法计算下面各题.
67×47+47×33    423-59+177-141     382×101-382      25×44
270÷6÷5          25×32×125       644+399     301×54-6×9.
用简便方法计算下面各题.
67×47+47×33    423-59+177-141     382×101-382      25×44
270÷6÷5          25×32×125       644+399     301×54-6×9.

67×47+47×33    423-59+177-141     382×101-382      25×44
270÷6÷5          25×32×125       644+399     301×54-6×9.
67×47+47×33    423-59+177-141     382×101-382      25×44270÷6÷5          25×32×125       644+399     301×54-6×9.67×47+47×33    423-59+177-141     382×101-382      25×4467×47+47×33    423-59+177-141     382×101-382      25×44270÷6÷5          25×32×125       644+399     301×54-6×9.270÷6÷5          25×32×125       644+399     301×54-6×9.
▼优质解答
答案和解析
(1)67×47+47×33
=(67+33)×47
=100×47
=4700

(2)423-59+177-141
=(423+177)-(59+141)
=600-200
=400

(3)382×101-382
=382×(101-1)
=382×100
=38200

(4)25×44
=25×(4×11)
=(25×4)×11
=100×11
=1100

(5)270÷6÷5
=270÷(6×5)
=270÷30
=9

(6)25×32×125
=25×(4×8)×125
=(25×4)×(8×125)
=100×1000
=100000

(7)644+399
=644+(400-1)
=644+400-1
=1044-1
=1043

(8)301×54-6×9
=301×54-54
=(301-1)×54
=300×54
=16200