99*99+199怎么算最简便
问题描述：
99*99+199怎么算最简便
答
99*99+99+100=99*（99+1）+100=100*（99+1）=10000
答
99*99+199
=99*(100-1)+199
=9900-99+199
=9900+(99-199)
=9900+100
=10000
答
=99*99+99+100
=99*(99+1)+100
=99*100+100
=100*(99+1)
=10000
答
99*99+199=（100-1）^2+200-1=10000-200+1+200-1=10000
答
=99*99+99+100
=99*(99+1)+100
=99*100+100
=9900+100
=10000
答
99*99+199
=99*99+99+100
=99*(99+1)+100
=99*100+100
=100*(99+1)
=100*100
=10000
答
99*99+99+100=99*(99+1)+100=9900+100=10000