3.78乘0.5减0.65等於多少(要簡便計算)

3.78乘0.5减0.65等於多少(要簡便計算)


3.78 X 0.5 - 0.65
= 3.78 / 2 - 1.3 / 2
=(3.78 - 1.3)/ 2
= 2.48 / 2
= 1.24



簡便計算7.25乘0.35减7.25乘0.25等於多少


=7.25×(0.35-0.25)=7.25×0.1=0.725



57.6除(0.8乘0.036)簡便運算


57.6/(0.8*0.036)
=(57.6/0.8)/0.036
=72/0.036
=2000



57.6÷(0.8×0.036)簡便算灋


57.6÷(0.8×0.036)
=57.6÷0.8÷0.036
=72÷0.036
=2×36÷0.036
=2×1000
=2000