Question

99×64+64用简便计算怎么算

Answer 1

99×64+64
=（99+1）×64
=100×64
=6400

Answer 2

99×64+64=99×64+64×1=（99+1）×64=6400

Answer 3

=64×（99+1）
=64×100
=6400

Answer 4

（99+1）*64=6400

Answer 5

64x(99+1)=64x100=6400