Question

633*210-(5697*28.3+717*569.7)*11/90急！！！

怎么写啊！！帮帮忙！！很急！！！！！！！最好都打下来，感谢！！

Answer 1

633*210-(5697*28.3+717*569.7)*11/90
=633*210-(5697*28.3+71.7*5697)*11/90
=633*210-5697x(28.3+71.7)*11/90
=633*210-5697x100*11/90
=633*210-633x10*11
=6330x(21-11)
=63300

Answer 2

633*210-（5697*28.3+717*569.7）*11/90

Answer 3

说个思路吧5697*28.3+717*569.7=5697*（28.3+71.7）=5697*100 而且5697/9=633
那么就有633*210-(5697*28.3+717*569.7)*11/90=633*210-633*110=633*100=63300