53*99*25怎么简便计算?

53*99*25怎么简便计算?
53*99*25怎么简便计算?

53*99*25怎么简便计算?
53*99*25
=5300/4*(100-1)
=530000/4-5300/4
=535300/4
=133825

[50+3]*99*25
=[25*2+3]*99*25
=25*【99+2】+3
=25*101+3
=275+3 自己接着算

53*99*25=53*(100-1)×25×4÷4=(5300-53)×100÷4
=(530000-5300)÷4=524700÷4=131175