早教吧 育儿知识 作业答案 考试题库 百科 知识分享

用简便方法计算.37+125+63+17575×56-56×28101×78125×32×25=36×99+366000÷125÷868×25×4=45×37+56×37-37=

题目详情
用简便方法计算.
37+125+63+175
75×56-56×28
101×78 125×32×25=
36×99+36 6000÷125÷8
68×25×4= 45×37+56×37-37=
▼优质解答
答案和解析
(1)37+125+63+175
=(37+63)+(125+175)
=100+300
=400;

(2)75×56-56×28
=56×(75-28)
=56×47
=2632;

(3)101×78
=(100+1)×78
=100×78+1×78
=7800+78
=7878;

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

(5)36×99+36
=36×(99+1)
=36×100
=3600;

(6)6000÷125÷8
=6000÷(125×8)
=6000÷1000
=6;

(7)68×25×4
=68×(25×4)
=68×100
=6800;

(8)45×37+56×37-37
=37×(45+56-1)
=37×100
=3700.