‘壹’ 5X27X5X4简便运算
5X27X5X4
=5×5×4×27
=100×27
=2700
53×5×4
=53×（5×4）
=53×20
=1060
你好，本题已解答，如果满意，请点右上角“采纳答案”。
‘叁’ 39x5x4简便运算怎么做，大家给答案吧
39x5x4=39x20=39+39+39+39+39+39+39+39+39+39+39+39+39+3939+39+39+39+39+39=20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+20+......=390x2=39x20=39x5x4
‘肆’ 125x5x4简便运算谢谢你们啦！
125x5x4
=125x4x5
=500x5
=2500
简便计算方法如上
‘伍’ 450x5x4的简便运算
450x5x4
=450x20
=9000
希望我的回答对您有帮助，有问题可以追问。
满意请及时采纳，谢谢！
‘陆’ 57x4x5的简便计算
57✘20
‘柒’ 47X5X4怎样简便
47×5×4
=47×(5×4)
=47×20
=940
利用乘法结合律先把五与四相乘得到一个整十的数，再把47与20相乘即可使计算简便。
‘捌’ 5x38x4x5的简便计算
5x38x4=5x5x4x38=100ⅹ38=3800，希望可以帮到你们。
‘玖’ 15x5x4如何简便计算
=15x(5x4)=15x20=300
‘拾’ 35X4x5的简便计算
简便计算
35X4x5
=35x（4x5）
=35x20
=700