Question

8×16×25×25×125×2019用最简便的方法怎么算？

Answer 1

原式=8*125*(4*25)*(4*25)*2019
=1000*100*100*2019
=20190000000

Answer 2

8×16×25×25×125×2019
=(8×125)×(25×16)×25×2019
=1000×400×25×2019
=(1000×2019)×(400×25)
=2019000×10000
=20190000000