ÌâÎÄ

Ö±½Óд³ö½á¹û£® £¨1£©4 4 5 +6.2= £¨2£©0.84¡Â 21 100 = £¨3£©16¡Á12.5= £¨4£© 1 5 ¡Á11- 1 5 = £¨5£©1.28¡Â 2 5 = £¨6£©8.3¡Â 5 2 ¡Â4= £¨7£©7.8-0.98= £¨8£©3.2+6.8¡Â10=£®

ÌâÐÍ£º½â´ðÌâ  ÄѶȣºÖеµ

´ð°¸

£¨1£©4 4 5 +6.2=11 £¨2£©0.84¡Â 21 100 =4 £¨3£©16¡Á12.5=200 £¨4£© 1 5 ¡Á11- 1 5 =2 £¨5£©1.28¡Â 2 5 =3.2 £¨6£©8.3¡Â 5 2 ¡Â4=0.83 £¨7£©7.8-0.98=6.82 £¨8£©3.2+6.8¡Â10=3.88£®

¾Ýר¼ÒȨÍþ·ÖÎö£¬ÊÔÌâ¡°Ö±½Óд³ö½á¹û£®£¨1£©445+6.2=£¨2£©0.84¡Â21100=£¨3£©16¡Á12.5=£¨4£©15¡Á11..¡±Ö÷Òª¿¼²éÄã¶Ô  Ð¡ÊýµÄ¼Ó·¨ºÍ¼õ·¨  µÈ¿¼µãµÄÀí½â¡£¹ØÓÚÕâЩ¿¼µãµÄ¡°µµ°¸¡±ÈçÏ£º

СÊýµÄ¼Ó·¨ºÍ¼õ·¨

¿¼µãÃû³Æ£ºÐ¡ÊýµÄ¼Ó·¨ºÍ¼õ·¨

• ѧϰĿ±ê£º
  1¡¢Ñ§Ï°¡¢Ì½Ë÷СÊý¼Ó·¨ºÍ¼õ·¨µÄ¼ÆËã·½·¨¡£ 
  2¡¢Àí½âСÊýµã¶ÔÆëµÄµÀÀí£¬ÕÆÎÕСÊý¼Ó·¨ºÍ¼õ·¨µÄ¼ÆËã·½·¨¡£

• ·½·¨µã²¦£º
  СÊý¼Ó·¨£ºÐ¡Êýµã¶ÔÆ룬×îµÍλ¼ÓÆð£¬ÂúÊ®Ïòǰһλ½øÒ»¡£ 
  СÊý¼õ·¨£ºÐ¡Êýµã¶ÔÆ룬×îµÍλ¼õÆ𣬲»¹»¼õ½è1»¹10¡£