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计算下面各题,能简便计算的要用简便.60÷15+15×60203×(39÷13×4)125×54-46×125(730-80÷2)÷23400×[(270+80)÷7]99+99×99

题目详情
计算下面各题,能简便计算的要用简便.
60÷15+15×60                   203×(39÷13×4)125×54-46×125                
(730-80÷2)÷23400×[(270+80)÷7]99+99×99
▼优质解答
答案和解析
(1)60÷15+15×60   
=4+900
=904

(2)203×(39÷13×4)
=203×(3×4)
=203×12
=2436

(3)125×54-46×125    
=(54-46)×125
=8×125
=1000

(4)(730-80÷2)÷23
=(730-40)÷23
=690÷23
=30

(5)400×[(270+80)÷7]
=400×[350÷7]
=400×50
=20000

(6)99+99×99
=(99+1)×99
=100×99
=9900