Question

101*0.87-0.91*27怎么算

Answer 1

101*0.87-0.91*27

=(100+1)*0.87-(100-9)*0.27

=87-27+0.87+0.9*2.7

=60+(1-0.13)+(1-0.1)*2.7

=60+1+2.7-0.13-0.27

=60+1+2.7-0.4

=63.3