脱式计算下列各题.(能简算的要简算)8.72*45.8/8.72/45.8*8.721.1//0.38-*1999
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/01 14:33:32
![脱式计算下列各题.(能简算的要简算)8.72*45.8/8.72/45.8*8.721.1//0.38-*1999](/uploads/image/z/1962320-32-0.jpg?t=%E8%84%B1%E5%BC%8F%E8%AE%A1%E7%AE%97%E4%B8%8B%E5%88%97%E5%90%84%E9%A2%98.%28%E8%83%BD%E7%AE%80%E7%AE%97%E7%9A%84%E8%A6%81%E7%AE%80%E7%AE%97%298.72%2A45.8%2F8.72%2F45.8%2A8.721.1%2F%2F0.38-%2A1999)
xQN08?e@
nDbCUF 픢"e``ws^CmoWz7tIw;" ,fO}T/.V5SޙQ@`!!CP1&9p[HXD|lI:",H ݸ*3sdg/pL)̲*.I`HyBEeofH"O J$dIor.s~Q߾ W,
脱式计算下列各题.(能简算的要简算)8.72*45.8/8.72/45.8*8.721.1//0.38-*1999
脱式计算下列各题.(能简算的要简算)
8.72*45.8/8.72/45.8*8.72
1.1/
/0.38
-*1999
脱式计算下列各题.(能简算的要简算)8.72*45.8/8.72/45.8*8.721.1//0.38-*1999
8.72*45.8/8.72/45.8*8.72 =8.72*45.8/45.8*8.72/8.72=8.72
1.1/[(20+9.744/2.4)*0.5-1.03]=1.1/[(20+4.06)*0.5-1.03]=1.1/(12.03-1.03)=1.1/11=0.1
[19+1.9*(3.8-0.38*0.5/0.05)]/0.38 =[19+1.9*(3.8-3.8)]/0.38=19/0.38=50
[27*4.5+8/0.6]-[120-(40*0.25+25/0.5)*2]*1999=[121.5+40/3]-[120-(10+50)*2]*1999=[121.5+40/3]-0=134.83(约等于)