Question

简算并写过程

43.5-{2-[0.35÷（1-0.375）×0.6]}×0.25

333387.5×79+790×66661.25

Answer 1

43.5-{2-[0.35÷（1-0.375）×0.6]}×0.25
=43.5-[2-(0.35÷0.625×0.6)]×0.25
=43.5-(2-0.336)×0.25
=43.5-1.664×0.25
=43.5-0.416
=43.084

333387.5×79+790×66661.25
=333387.5×79+79×10×66661.25
=333387.5×79+79×666612.5
=79×(333387.5+666612.5)
=79×1000000
=79000000

Answer 2

第一个，中括号里面先算0.35*0.6，再除以（1-0.375）.即0.21/0.625,把小数都化成分数（不是最简也可以，如:0.21看成21/100，0.625看成625/1000）除以一个数即乘以这个数的倒数，约分化简求值。
第二个:
333387.5*79+790*66661.25=333387.5*79+79*666612.5=1000000*79=79000000