Question

301x89—89咋简算

Answer 1

301×89-89=(301-1)×89=300×89=300×90-1×300=27000-300=26700

Answer 2

先乘后减

Answer 3

=89x(301-1)=89x300=26700

Answer 4

300*89=26700

Answer 5

89×（301-1）

追答

=89×300

=26700