99^2+198+1用简便方法计算

2024-12-17 16:05:34
推荐回答(1个)
回答1:

99²+198+1
=99*99+99*2+1
=99*99+99+(99+1)
=99*(99+1)+100
=99*100+100
=(99+1)*100
=100²
=10000