0.125*4.8 4.6/(2.3*0.4) 5.6/3.5+4.7 7.5*[63.9/(7-2.5)] 5.5*8+4.5/_数学解答

0.125*4.8 4.6/(2.3*0.4) 5.6/3.5+4.7 7.5*[63.9/(7-2.5)] 5.5*8+4.5/0.125 怎么简便计算
还有一道!26.19+0.91/(3.6-2.9)
各位,帮帮忙吧!
要脱式的简便计算!!!!!!!!

人气：261 ℃　时间：2019-08-26 07:13:42

解答

0.125*4.8=0.125*8*0.6=1*0.6=0.64.6/(2.3*0.4)=4.6/（4.6*0.2）=1/0.2=55.6/3.5+4.7=0.7*8/（0.7*5）+4.7=1.6+4.7=6.37.5*[63.9/(7-2.5)] =7.5*9*7.1/4.5=0.5*15*9*7.1/（0.5*9）=15*7.1=106.55.5*8+4.5/0.125 =5.5...