很简单的题目啊~~帮忙下(1)5.6X69.32+138.64X0.05+693.2X0.43(2)362+548X361——————362X548-186简算的哦,第(2)题就是362X548-186分之362+548X361过程也要哦

Question

很简单的题目啊~~帮忙下
(1)5.6X69.32+138.64X0.05+693.2X0.43
(2)362+548X361
——————
362X548-186
简算的哦,第(2)题就是362X548-186分之362+548X361
过程也要哦

Answer 1

(1)5.6X69.32+138.64X0.05+693.2X0.43
=5.6*69.32+69.32*2*0.05+69.32*4.3
=69.32*(5.6+0.1+4.3)
=69.32*10
=693.2
(362+548X361)/(362X548-186 )
=(362+548*361)/[(361+1)*548-186]
=(362+548*361)/[361*548+548-186]
=(362+548*361)/(548*361+362)
=1