有些四位数由4个不为零且互不相同的数字组成，并且这4个数字的和等于12．将所有这样的四位数从小到大依次排列，第24个这样的四位数是多少7．
直接写出得数．×= 2.4÷= 7﹣﹣= 0.24×50%=÷7= ×37.5%= 1÷÷1= ÷=×= 1÷= ×9+= ÷=
直接写得数．×= 1﹣= 7+6.2= ÷1=÷= ×= 2.5×= ×=
直接写出答案= = = == = = =
×=÷6=
直接写得数÷7= 42×= 6÷= ×33=÷= += 10÷1%= ﹣20%=﹣= 24×50%=
×
= 2.4÷
= 7﹣
﹣
= 0.24×50%=
÷7= 
×37.5%= 1÷
÷1= 
÷
=
×
= 1
÷
= 
×9+
÷
=
×
= 1﹣
= 7+6.2= 
÷1=
÷
= 
×
= 2.5×
= 
×
=
= 
= 
= 
=
= 
= 
= 
=
×
=
÷6=
÷7= 42×
= 6÷
= 
×33=
÷
= 
+
= 10÷1%= 
﹣
= 24×50%=
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