Question

999×8+111×28 怎样用简便方法计算4种方法?(四年级)

Answer 1

999×8+111×28
=111×9×8十111×28
=111×72+111x28
=111×（72+28）
=111×100
=111000

Answer 2

=111*9*8+111*28
=111*(9*8)+111*28
=111*(72+28)
=111000

Answer 3

答案都算错了还上传？应该11100.