需要过程,谢谢!
第1个回答 2020-04-23
51X99
=51X(100-1)
=51X100-51X1
=5100-51
=5049本回答被提问者采纳
=51X(100-1)
=51X100-51X1
=5100-51
=5049本回答被提问者采纳
第2个回答 2020-04-23
可以简算,
51*99
=51*(100-1)
=51*100-51*1
=5100-51
=5049
希望采纳,谢谢
51*99
=51*(100-1)
=51*100-51*1
=5100-51
=5049
希望采纳,谢谢