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99X99十199用简便方法计算

99x99十199 =99*99+99+100 =99*(99+1)+100 =99*100+100 =100*(99+1) =100*100 =10000

99*99+199 =100*99+100 =9900+100 10000

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

99X99十199 =99×99+99+100 =99×(99+1)+100 =99×100+100 =(99+1)×100 =100×100 =10000

99×99+99+100=99×(99+1)+100=99×100+100=10000

99x999+199 =99x999+99+100 =99x(999+1)+100 =99x1000+100 =99000+100 =99100

=99X99+99+100 =99X(99+1)+100 =99X100+100 =(99+1)X100 =100X100 =10000 望采纳

99×99 + 199 = 99² + 199 = 99² + 198 + 1 = (99 + 1)² = 100² = 10000

199X99十199 =199×(99+1) =199×100 =19900

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