СѧÎåÄ꼶ÊýѧϲáÊî¼ÙÒ»ÌìÒ»Á·£¨¼ÆËãÌâ¡¢Ó¦ÓÃÌâרÁ·£©

_____ÔÂ______ÈÕ

1.½â·½³Ì¡£

x?52? 615

x?214? 33

x?27?99

5.6x=33.6

x+19.8=25.8

9.8-x=3.8

2.¹ûÔ°ÀïÓÐÆ»¹ûÊ÷480¿Ã£¬±ÈÌÒÊ÷ÉÙ3/5£¬ÌÒÊ÷ºÍÆ»¹ûÊ÷¹²ÓжàÉٿã¿

_____ÔÂ______ÈÕ

3.һͰÓÍ£¬µÚÒ»´Îµ¹³ö×ÜÊýµÄ3/8£¬µÚ¶þ´Îµ¹³ö×ÜÊýµÄ2/5£¬Á½´Îµ¹³ö31ǧ¿Ë£¬ÕâÍ°ÓÍÔ­ÓжàÉÙǧ¿Ë£¿

4.Ò»±¾Êé¹²200Ò³£¬µÚÒ»Ìì¶ÁÁËÈ«ÊéµÄ3/20£¬µÚ¶þÌì¶ÁÁË×ÜÒ³ÊýµÄ1/5£¬»¹Ê£¶àÉÙҳûÓжÁ£¿

5.ÐÞÒ»ÌõºÓ£¬µÚÒ»ÌìÐÞÁËÈ«³¤µÄ3/20£¬µÚ¶þÌìÐÞÁËÈ«³¤µÄ1/5£¬»¹Ê£390Ã×ûÓÐÐÞ£¬ÕâÌõºÓÈ«³¤¶àÉÙÃ×£¿

_____ÔÂ______ÈÕ

1.½â·½³Ì£º X£­7.4=8 2X=3.6

X¡Â1.8=3.6 X+6.4=14.4

75.6¡Âx=12.6

5x+12.5=32.3

2.Ò»Åú´óÃ×£¬µÚÒ»ÌìÊÛ³ö×ÜÊýµÄ3/10£¬µÚ¶þÌìÊÛ³ö×ÜÊýµÄ9/20£¬»¹Ê£75ǧ¿Ë£¬ÕâÅú´óÃ×¹²ÓжàÉÙǧ¿Ë£¿

_____ÔÂ______ÈÕ

3.Ò»Åú»õÎïµÚÒ»´ÎÔË×ß2/7£¬µÚ¶þ´ÎÔË×ß15¶Ö£¬ÕâʱÔË×ߵĺÍʣϵıÈÊÇ9:5£¬ÕâÅú»õÎï¹²ÓжàÉÙ¶Ö£¿

4.Сºì¿´Ò»±¾120Ò³µÄÊ飬µÚÒ»Ìì¿´ÁËÈ«ÊéµÄ1/3£¬µÚ¶þÌì¿´ÁËÈ«ÊéµÄ1/4£¬Á½Ìì¹²¿´Á˶àÉÙÒ³£¿

5.ͼÊé¹ÝµÚÒ»´Î½è³ö×ÜÊýµÄ1/5£¬µÚ¶þ´Î½è³ö×ÜÊýµÄ1/3£¬»¹Ê£ÏÂ560²á£¬ÊéµêÔ­ÓÐͼÊé¶àÉٲ᣿

ÁªÏµ¿Í·þ£º779662525#qq.com(#Ì滻Ϊ@)