一块长方形土地长30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？
直接写得数+= 3+1.75=÷=×=×=﹣=+=×0+3= （+）×=×÷×=
口算下面各题．﹣=+=﹣= 2÷=×6=÷=×6=×=﹣=÷=÷=×=×=÷=÷= 6.4÷0.08= 4﹣2.92=÷=
直接写得数： 1﹣=×=÷2÷= 2×80%=+= 15÷= 35×=×÷×=
直接写出得数．﹣=×= 12×= 1÷=== 1.6×4×0.25= 0÷=
直接写得数．+=÷6=×= 2﹣+=×16= 6﹣=÷=5×÷5×=
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？
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= 6.4÷0.08= 4﹣2.92=
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