汇泉超市扩建前的占地是一个长为2300米，宽为200米的长方形，它的面积是多少平方米？合多少公顷？
直接写得数．﹣=÷=×=×= 10×=×=÷=÷= 15×=÷=+=÷22=
直接写出得数．=========．
直接写出得数．÷10=×= 1÷= 8×= 1+=÷=×÷= 1÷6×=
直接写得数． 4×30%=﹣= 44÷= 0.45÷5= 10﹣0.57﹣0.43=×÷×=﹣×= 0.68++0.32= 8.37×2.4÷1.9×0= 1÷5+=
直接写得数．==×30=÷5= 2÷= 470﹣407= 13×50= 8.64﹣5.04= 500÷25= 4.57+5.43=
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