Question

1.(7/9-5/6+3/18)*18-1.45*6+3.95*6 2.-9,-6,2,7,运用四则运算,使结果等于24

Answer 1

(7/9-5/6+3/18)*18-1.45*6+3.95*6

=14-15+3+6(-1.45+3.95)

=2+6*2.5

=17

-9*2-(-6)*7=24

(-9+7)*2*(-6)=24

[7-(-9)]-(-6)+2=24