Question

1.25x240%+1.25x760%和80%x45-60%(除以)1/45 怎么简算

Answer 1

1.25x240%+1.25x760%=1.25x(240%+760%)=1.25x10=12.580%x45-60%(除以)1/45=80%x45-60%x45=45x(80%-60%)=45x0.2=9