量一量，再计算下面图形的周长．
15= 4= 6﹣1= 4= 1= == 5= = = 4.5﹣= =
直接写得数1÷= ÷10= ××= ×=÷= 6×= ×9×= 5÷﹣÷5=
直接写得数÷2= ÷= 6×= ×2=+= ×= 18÷= 3﹣=
一个数的是36，这个数是多少？
6米长的彩带平均分成5段．每段彩带长几分之几米？每段彩带占总长度的几分之几？
= 4
= 6﹣1
= 4
= 1
= 
=
= 5
= 
= 
= 4.5﹣
= 
=
= 
÷10= 
×
×
= 
×
=
÷
= 6×
= 
×9×
= 5÷
÷5=
÷2= 
÷
= 6×
= 
×2=
= 
×
= 18÷
= 3﹣
=
是36，这个数是多少？
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