-6.28*17.6+6.28*(-23.3)-1.57*36.4
问题描述:
-6.28*17.6+6.28*(-23.3)-1.57*36.4
答
原式=6.28*(-17.6-23.3-36.4/4)
=6.28*(-17.6-23.3-9.1)
=6.28*(-50)
=6.28*-100/2
=314