在□填上合适的数．□﹣42+36=56□×（90﹣84）=48．
把下面的假分数化成带分数或整数，把带分数化成假分数．= 1= = 3= 1= = 9= = ．
把下面的假分数化成带分数或整数．= = = = = = = = = ．
化为假分数是 ；2.125化为分数是 ．
分子是分母倍数的假分数，实际上都可以化成整数． （判断对错）
把下面的假分数化成整数．= = = ．
= 
= 
= 
= 
= 
= 
= ．
= 
= 
= 
= 
= 
= 
= 
= 
= ．
化为假分数是 ；2.125化为分数是 ．
= 
= 
= ．
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