Question

0.9999乘1.5—0.1111乘2.7

Answer 1

0.9999*1.5—0.1111*2.7=(1-0.0001)*1.5-0.29997=1.5-0.00015-0.29997=1.5-(0.00015+0.29997) =1.5-0.30012=1.19988