ÌâÄ¿ÄÚÈÝ
СÍõÉÏÖÜÎåÔÚ¹ÉÊÐÒÔÊÕÅ̼Ûÿ¹É25ÔªÂò½øij¹«Ë¾µÄ¹ÉƱ1000¹É£¬ÔÚ½ÓÏÂÀ´µÄÒ»Öܽ»Ò×ÈÕÄÚ£¬Ëû¼ÇϸùÉƱÿÈÕÊÕÅ̼۱ÈÇ°Ò»ÌìµÄÕǵøÇé¿ö£¨µ¥Î»£ºÔª£©£º
£¨1£©ÐÇÆÚ¶þÊÕÅÌʱ£¬¸Ã¹ÉƱÿ¹É¶àÉÙÔª£¿
£¨2£©±¾ÖÜÄÚ£¬¸Ã¹ÉƱÊÕÅÌʱµÄ×î¸ß¼Û¡¢×îµÍ¼Û·Ö±ðÊǶàÉÙ£¿
£¨3£©ÒÑÖªÂòÈë¹ÉƱÓëÂô³ö¹ÉƱ¾ùÐèÖ§¸¶³É½»½ð¶îµÄ0.1%µÄ½»Ò×·Ñ£¬ÈôСÍõÔÚ±¾ÖÜÎåÒÔÊÕÅ̼۽«È«²¿¹ÉƱÂô³ö£¬ËûµÄÊÕÒæÇé¿öÈçºÎ£¿
ÐÇÆÚ | Ò» | ¶þ | Èý | ËÄ | Îå |
ÿ¹ÉÕǵø | +2 | -0.5 | +1.5 | -1.8 | +0.8 |
£¨2£©±¾ÖÜÄÚ£¬¸Ã¹ÉƱÊÕÅÌʱµÄ×î¸ß¼Û¡¢×îµÍ¼Û·Ö±ðÊǶàÉÙ£¿
£¨3£©ÒÑÖªÂòÈë¹ÉƱÓëÂô³ö¹ÉƱ¾ùÐèÖ§¸¶³É½»½ð¶îµÄ0.1%µÄ½»Ò×·Ñ£¬ÈôСÍõÔÚ±¾ÖÜÎåÒÔÊÕÅ̼۽«È«²¿¹ÉƱÂô³ö£¬ËûµÄÊÕÒæÇé¿öÈçºÎ£¿
¿¼µã£ºÓÐÀíÊýµÄ»ìºÏÔËËã,ÕýÊýºÍ¸ºÊý
רÌ⣺
·ÖÎö£º£¨1£©ÓÃÔÀ´Ã¿¹ÉµÄ¼ÛÇ®¼ÓÉÏÕǵøµÄ¼Û¸ñ¼´¿É£»
£¨2£©·Ö±ðËã³öÿһÌì¹ÉƱÊÕÅÌʱµÄ¼Û¸ñ£¬±È½ÏµÃ³ö´ð°¸¼´¿É£»
£¨3£©ÀûÓÃÖÜÎåµÄÊÕÅ̼ÛÇóµÃ³É½»¶î£¬È¥µô½»Ò×·ÑÓë³É±¾£¬Ëã³ö½á¹û¼´¿É£®
£¨2£©·Ö±ðËã³öÿһÌì¹ÉƱÊÕÅÌʱµÄ¼Û¸ñ£¬±È½ÏµÃ³ö´ð°¸¼´¿É£»
£¨3£©ÀûÓÃÖÜÎåµÄÊÕÅ̼ÛÇóµÃ³É½»¶î£¬È¥µô½»Ò×·ÑÓë³É±¾£¬Ëã³ö½á¹û¼´¿É£®
½â´ð£º½â£º£¨1£©25+2-0.5=26.5£¨Ôª£©
´ð£º¸Ã¹ÉƱÿ¹É26.5Ôª£®
£¨2£©ÐÇÆÚÒ»£º25+2=27Ôª£»
ÐÇÆÚ¶þ£º27-0.5=26.5Ôª£»
ÐÇÆÚÈý£º26.5+1.5=28Ôª£»
ÐÇÆÚËÄ£º28-1.8=26.2Ôª£»
ÐÇÆÚÎ壺26.2+0.8=27Ôª£»
´ð£º×î¸ß28Ôª£¬×îµÍ26.2Ôª£®
£¨3£©26.2¡Á1000¡Á£¨1-0.1%£©-25¡Á1000
=26173.8-25000
=1173.8£¨Ôª£©£»
´ð£ºËûÓ¯Àû1173.8Ôª£®
´ð£º¸Ã¹ÉƱÿ¹É26.5Ôª£®
£¨2£©ÐÇÆÚÒ»£º25+2=27Ôª£»
ÐÇÆÚ¶þ£º27-0.5=26.5Ôª£»
ÐÇÆÚÈý£º26.5+1.5=28Ôª£»
ÐÇÆÚËÄ£º28-1.8=26.2Ôª£»
ÐÇÆÚÎ壺26.2+0.8=27Ôª£»
´ð£º×î¸ß28Ôª£¬×îµÍ26.2Ôª£®
£¨3£©26.2¡Á1000¡Á£¨1-0.1%£©-25¡Á1000
=26173.8-25000
=1173.8£¨Ôª£©£»
´ð£ºËûÓ¯Àû1173.8Ôª£®
µãÆÀ£º´ËÌ⿼²éÓÐÀíÊýµÄ»ìºÏÔËËãµÄʵ¼ÊÔËÓ㬽áºÏʵ¼Ê£¬ÀíÇåÌâÒ⣬½â¾öÎÊÌ⣮
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
ÏÂÁÐÔ˶¯ÊôÓÚƽÒƵÄÊÇ£¨¡¡¡¡£©
A¡¢Æû³µÔÚƽֱµÄÂí·ÉÏÐÐÊ» |
B¡¢´µ·ÊÔíÅÝʱСÆøÅݱä³É´óÆøÅÝ |
C¡¢Ç¦Çò±»Å׳ö |
D¡¢ºìÆìËæ·çÆ®Ñï |
ÒÑÖªµãA£¨2£¬-3£©ºÍB£¨a£¬b£©¹ØÓÚÔµã¶Ô³Æ£¬Ôò£¨a+b£©2008µÄֵΪ£¨¡¡¡¡£©
A¡¢2008 | B¡¢0 | C¡¢-1 | D¡¢1 |