（-370）×四分之一 +（-四分之一）×24.5＋（-5又二分之一）×（-0.25）简便算法
人气：324 ℃ 时间：2019-10-18 08:13:12
解答
=-370*1/4-1/4*24.5+5.5*1/4
=-1/4*(370+24.5-5.5)
=-1/4*389
=-1/4*(400-11)
=-100+11/4
=-100+2+3/4
=-98+3/4
=-98 +1 -1 +3/4
=-97-1/4
=-97又1/4
=-97.25
推荐
猜你喜欢
- The farmer soon came back to get his shoes,but when he put his foot into one of his shoes and felt something hard,he fou
- 求y=lnx在点M（e,1）的切线方程和法线方程.
- It feel like three
- 骨骼不含钙有没有无机盐
- 硫酸铵和硫酸铁铵的ph值大小
- A.refresh B.renew C.stimulate D.encourage
- 如图所示,在△ABC中,AB=AC,点MN分别在BC所在的直线上,且AM=AN,BM与CN相等吗?两种解答方法.
- 巳知电压为380v功率45千瓦,用多大的空气开关,线的大少,是怎么算的!请高手多指教谢谢了.
