脱式计算,能简算的要简算.
475+660÷33×25400-145.84×1.36+1.36×3.16+1.36[1.9-6÷(2.4×5)]÷(14×0.2).
网友回答
解:475+660÷33×25
=475+20×25
=475+500
=975;
?()×36
=×36+×36-×36
=20+-33
=18.5
[1.9-6÷(2.4×5)]÷(14×0.2)
=[1.9-6÷12]÷2.8
=[1.9-0.5]÷2.8
=1.4÷2.8
=0.5
400-14
=400-()
=400-100
=300;
5.84×1.36+1.36×3.16+1.36
=1.36×(5.84+3.16+1)
=1.36×10
=13.6;
=
=[+-]×12
=[+1-]×12
=×12+1×12-×12
=8+12-3
=17.
解析分析:按四则运算顺序解答
点评:按四则运算法则解题,能用规律简算的可以简算.