1.76除以0.55目录
75÷0.25 1.25÷0.25
=(75 1.25)÷0.25
=76.25x4
=(76 0.25)x4
=76x4 0.25x4
=304 1
=305
计算时先全化成整数,例如:0.512÷1.5=512÷150,别听一楼的,算完了答案无需加小数点(要同时扩大相同倍数)
展开全部
43.8-1.76÷0.8×1.25
=43.8-0.8x2.2÷0.8x5/4
=43.8-2.2x5/4
=43.8-0.55x5
=43.8-2.75
=41.05
谢谢,请采纳