6.28*(-23.3)-3.14*35.2-1.57*36.4 的简便算法
问题描述:
6.28*(-23.3)-3.14*35.2-1.57*36.4 的简便算法
答
6.28*(-23.3)-3.14*35.2-1.57*36.4
=6.28x(-23.3)-6.28x17.6-6.28x9.1
=6.28x(-23.3-17.6-9.1)
=-6.28x50
=-314
答
6.28*(-23.3)-3.14*35.2-1.57*36.4
=3.14*2*(-23.3)-3.14*35.2-1.57*2*18.2
=3.14*(-46.6)-3.14*35.2-3.14*18.2
=3.14*(-46.6-35.2-18.2)
=3.14*(-100)
=-314
答
6.28*(-23.3)-3.14*35.2-1.57*36.4
=6.28*(-23.3-17.6-9.1)
=6.28*(-50)
=314;
答
6.28*(-23.3)-3.14*35.2-1.57*36.4
=3.14×(-46.6)-3.14×35.2-3.14×18.2
=3.14×(-46.6-35.2-18.2)
=3.14×(-100)
=-314