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简便计算99x64

99x64=(100-1)*64=100*64-1*64=6400-64=6336

99x64+64的简便运算99x64+64=64*(99+1)=64*100=6400

99*64简便运算99*64=100x64-64=6400-64=6336

原式=99x64+1x64=(99+1)x64=100x64=6400

64*99=64*(100-1)=64*100-64*1=6400-64=6336 明白请采纳,有疑问请追问!有新问题请求助,谢谢!

=64乘99+64乘1 =64乘(99+1) =64乘100 =6400

99x64+99=99X(64+1)=99X65=(100⑴)X65=100X65⑴X65=6500⑹5=6435

原式=64x(99-52)+47x36=64x47+47x36=47x(64+36)=4700

99*64+64=99+1*64=100*64=6400

45*36+36*54+99*64=36*(45+54)+99*64=36*99+99*64=99*(36+64)=99*100=9900

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