(224488-224.488)(112244+112.244)简便计算
收藏:
0
点赞数:
0
评论数:
0
1个回答

第一种算法:

(224488-224.488)×(112244+112.244)

=[112244×2(1-0.001)] ×[112244×(1+0.001)]

=(112244×112244)×2×[(1-0.001)×(1+0.001)]

=(112244×112244)×2×0.999999

=112244² ×2×0.999999

=12598715536×1.999998

=25197405874.569

第二种算法:

(224488-224.488)×(112244+112.244)

=[224488×(1-0.001)]×[224488×0.5×(1+0.001)]

=(224488×224488) ×0.5×[(1-0.001)×(1+0.001)]

=(224488×224488) ×0.5×0.999999

=224488² ×0.5×0.999999

=50394862144×0.4999995

=25197405874.569

点赞数:
0
评论数:
0
关注公众号
一起学习,一起涨知识