ÌâÄ¿ÄÚÈÝ

ijĦÍгµ³§±¾Öܼƻ®Ã¿ÈÕÉú²ú250Á¾Ä¦Íгµ£¬ÓÉÓÚ¹¤ÈËʵÐÐÂÖÐÝ£¬Ã¿ÈÕÉÏ°àÈËÊý²»Ò»¶¨ÏàµÈ£¬Êµ¼ÊÿÈÕ²úÁ¿Óë¼Æ»®Á¿Ïà±ÈÇé¿öÈçÏÂ±í£¨Ôö¼ÓµÄÁ¾ÊýΪÕýÊý£¬¼õÉÙµÄÁ¾ÊýΪ¸ºÊý£©
ÐÇÆÚ Ò» ¶þ Èý ËÄ Îå Áù ÈÕ
Ôö¼õ -5 +7 -3 +4 +10 -9 -25
¸ù¾Ý¼Ç¼¿ÉÖª±¾ÖÜÐÇÆÚÁùʵ¼ÊÉú²úÁË
241
241
Á¾Ä¦Íгµ£¬±¾ÖÜʵ¼Ê×ܹ²Éú²úÁË
1729
1729
Á¾Ä¦Íгµ£¬²úÁ¿×î¶àµÄÒ»Ìì±È²úÁ¿×îÉÙµÄÒ»Ìì¶àÉú²úÁË
35
35
Á¾Ä¦Íгµ£®
·ÖÎö£º¼Æ»®Êý¼ÓÉÏÔö¼õµÄÊý¼´¿ÉµÃµ½ÖÜÁùÉú²úµÄÊýÁ¿£»Óüƻ®Êý¡Á7+£¨Ã¿ÈÕÔö¼õÊýµÄºÍ£©¼´Îª×ܲúÁ¿£»¸ù¾Ý±í¸ñ¿ÉÒÔÖªµÀ²úÁ¿×î¶àµÄÒ»ÌìºÍ²úÁ¿×îÉÙµÄÒ»Ìì¸÷×ԵIJúÁ¿£¬È»ºóÏà¼õ¼´¿ÉµÃµ½½áÂÛ£®
½â´ð£º½â£º±¾ÖÜÐÇÆÚÁùʵ¼ÊÉú²úÁË250-9=241£¬
 ±¾ÖÜʵ¼Ê×ܹ²Éú²úÁË250¡Á7+£¨-5+7-3+4+10-9-25£©=1729£¬
  ²úÁ¿×î¶àµÄÒ»Ìì±È²úÁ¿×îÉÙµÄÒ»Ìì¶àÉú²úÁË£¨250+10£©-£¨250-25£©=35£¬
¹Ê´ð°¸Îª£º241£¬1729£¬35£®
µãÆÀ£º´ËÌâÖ÷Òª¿¼²éÕý¸ºÊýÔÚʵ¼ÊÉú»îÖеÄÓ¦Óã¬ËùÒÔѧÉúÔÚѧÕâÒ»²¿·Öʱһ¶¨ÒªÁªÏµÊµ¼Ê£¬²»ÄÜËÀѧ£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø