36.5乘0.98减5.7用简便方法怎么计算

分类: 作业答案 • 2021-12-20 01:26:06

问题描述：

答

36.5*0.98-5.7
=36.5*(1-0.02)-5.7
=36.5-36.5*0.02-5.7
=36.5-0.73-5.7
=36.5-6.43
=30.07