如题所述
第1个回答 2020-03-12
35X(99+101)
=35x200
=7000
=35x200
=7000
第2个回答 2020-03-12
=35×(99+101)
=35×200
=7000
=35×200
=7000
第3个回答 2020-03-12
35×99+35×101
=35×(99+1)+35×(101-1)
=35×100+35×100
=3500+3500
=7000本回答被网友采纳
=35×(99+1)+35×(101-1)
=35×100+35×100
=3500+3500
=7000本回答被网友采纳