1.76加3.24目录
25乘6乘499乘4477乘25乘42.5乘77乘242.5乘2.82.4乘9加2.4乘124除4乘645除9除5199乘24加24
1(0.25乘3.24加1.76乘百分之75)除以百分之75
=2.13除以百分之75
=2.84
2(2加4分之3乘1)加(2加4分之3乘以2)除以(2加4分之3乘3)加(2加4分之3乘4)
1.[(1-0.75)*3.24 1.76*0.75]/0.75
=[3.24-0.75*(3.24-1.76)/0.75
=(3.24-0.75*1.48)/0.75
=4.32-1.48
=2.84
2.