计算:-3.14*35.2+6.28*(-23.3)-1.57*36.4 要简算,最重要的是过程!

2024-12-22 02:57:04
推荐回答(2个)
回答1:

-3.14*35.2+6.28*(-23.3)-1.57*36.4
=-(3.14*35.2+6.28*23.3+1.57*36.4)
=-[3.14*35.2+3.14*2*23.3+(3.14/2)*36.4]
=-3.14*(35.2+46.6+18.2)
=-3.14*100
=-314
也可以提1.57为公因子,一样的.

回答2:

=-3.14*35.2-3.14*46.6-3.14*18.2
=-3.14*100
=-314