Question

5-0.75/1.5*6.4=?1.25*0.7*8*0.9=?8.56*98+856*0.02=?800*(0.3+1

Answer 1

5-0.75/1.5*6.4=5-1/2*6.4=5-3.2=1.8

1.25*0.7*8*0.9=1.25*8*0.7*0.9=10*0.63=6.3

8.56*98+856*0.02==856*0.98+856*0.02=856

800*(0.3+1.25)/6.2=800*(1.24+0.31)/6.2=800*(0.2+0.05)=800*0.25=200

3.14*10.1-0.314=3.14*10=31.4

0.888*125*73=0.111*8*125*(8*9+1)=999*8+111

0.888*125*73+999*3=999*8+111+999*3=999*11+111=111*99+111

=111*(99+1)=11100