如题所述
第1个回答 2011-08-12
45*98
=45*(100-2)
=45*100-45*2
=4500-90
=4410
=45*(100-2)
=45*100-45*2
=4500-90
=4410
第2个回答 2023-02-08
45ⅹ98
=45x(100-2)
=45x100-45x2
=4500-90
=4410本回答被网友采纳
=45x(100-2)
=45x100-45x2
=4500-90
=4410本回答被网友采纳