Question

123×67-23×67+33×82+33×18等于多少简便计算？

Answer 1

(123-23)x67+33x(82+18)
=100x67+33x100
=100x(67+33)
=100x100
=10000

Answer 2

=67×（123-23）+33×（82+18）
=6700+3300
=10000