Question

45×(38×2)用简便方法计算

45×(38×2)用简便方法计算

Answer 1

解:45*(38*2)

=45*2*38

=90*38

=3420

Answer 2

45x(38x2)
=45x2x38
=90x38
=3420

Answer 3

45×(38×2)

=45×2×38
=90×38
=3420