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199×99+99简便计算

199+99*99 =100+99+99*99 =100+99*(1+99) =100+99*100 =100+9900 =10000

199×99+99 =99(199+1) =99*200 =(100-1)*200 =20000-200 =19800

99×99+99+100=99×100+100=100×100=10000

99×100+199-99 =9900+100 =10000

199+99×199 =199×(1+99) =199×100 =19900

99乘99加199 =99*99+199 =99*99+99+100 =99*(99+1)+100 =99*100+100 =(99+1)8100 =100*100 =10000

99*99+199 =99x99+99+100 =99x(99+1)+100 =99x100+100 =100x(99+1) =100x100 =10000 亲,请【采纳答案】,您的采纳是我答题的动力,谢谢。

用简便方法计算99x99+199 99x99+199 =99*99+99+100 =99*(99+1)+100 =99*100+100 =100*(99+1) =100*100 =10000

原式=(100-1)x99+100+99 =100x99+100+(99-99) =9900+100 =10000

99*999+199 =99*999+99+100 =99*(999+1)+100 =99*1000+100 =99000+100 =99100

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