Question

64✘99+64简便计算？

Answer 1

数学角度上就是很常规的 64x99 + 64x1 则为64x（99+1）。得为64x100=6400

Answer 2

64✘99+64
=64*99+64*1
=64*（99+1）
=64*100
=6400

Answer 3

64✘99+64
=64✘(1+99)
=64✘100
=6400

Answer 4

64x99+64
=64x（99+1）
=64x100
=6400