19*27+190*4+19*33简便计算

问题描述:

19*27+190*4+19*33简便计算

19*27+190*4+19*33
=19*(27+40+33)
=19*100
=1900

19*27+190*4+19*33=19*(27+33+40)=19*100=1900

首先提取公因数19,原式可化为19(27+10*4+33)=19*100=1900

19*27+190*4+19*33
=19*27+19*40+19*33
=19*(27+40+33)
=19*100
=1900

19*27+190*4+19*33
=19×﹙27+40+33)
=19×100
=1900