米，宽18米，它的面积相当于另一块梯形土地的2
倍．梯形土地的面积是多少平方米？相关试题
﹣
=
12.5%=4÷4÷
=
×6=
）=（
﹣
）÷
=
﹣
+
）
÷[（
+
）×
]
﹣
）×3]．脱式计算与简便运算
= 
= 
= 
=
6﹣
×
﹣
= 〔1﹣（
﹣
）〕÷
= 
= 
=
5+3.6×2.5÷0.48= 
= 
= 
=
3.6×2
÷16.9÷（3
×1.1 6）×1.3= 
+
+
+…+
= ．
脱式计算与简便运算= = = =
6﹣×﹣= 〔1﹣（﹣）〕÷= = =
5+3.6×2.5÷0.48= = = =
3.6×2÷16.9÷（3×1.1 6）×1.3= +++…+= ．
=（
）×12=
．
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