如题所述
(99x99+99)x100
=ï¼99x99+99x1)x100
æ¬å·ä¸è¿ç¨ä¹æ³åé å¾
=ï¼99+1ï¼x99x100
=100x99x100
=990000
ç¥å¦ä¹ è¿æ¥ã
=ï¼99x99+99x1)x100
æ¬å·ä¸è¿ç¨ä¹æ³åé å¾
=ï¼99+1ï¼x99x100
=100x99x100
=990000
ç¥å¦ä¹ è¿æ¥ã
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