94×9393-92×9494如何简便计算
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94×9393-92×9494如何简便计算
94×9393-92×9494如何简便计算
94×9393-92×9494如何简便计算
94×9393-92×9494
=94×9393-92×94×101
=94×9393-94×9292
=94×(9393-9292)
=94×101
=9494
94×9393-92×9494
=94×101×93-92×101×94
=94×101×(93-92)
=94×101×1
=9494
94*93*101-92*94*101=94*101*(93-92)=94*101=9494
=(92*9393+2*9393)-(92*9393+92*101)
=2*9393-92*101
=9494
=94x(9400-7)-92x(9400+94)
=94X9400-94X7-92X9400-92X94
=9400X(94-92)-94X(7+92)
=9400x2-94x(7+92+1-1)
=9400x2-9400x1+94
=9400+94
=9494
原式=93*9393-93*9494+9393+9494=-9393+9393+9494=9494