有一块长方形的试验田，它的长为800米，宽为500米，这块试验田的面积是多少平方米？合多少公顷？
直接写得数．+=÷6=×= 2﹣+=×16= 6﹣=÷=5×÷5×=
直接写得数．===== 75%÷25%===
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直接写出得数．+0.2=+﹣0.2= 5÷=×1.5+3= 3.6×=×1.5=﹣= 1﹣137.5%=
直接写得数﹣=÷9= 1﹣=×=÷=÷=+=×=+=÷=﹣=×=
+
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÷6=
×
= 2﹣
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×16= 6﹣
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÷
=5×
÷5×
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=
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=
= 75%÷25%=
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+0.2=
+
﹣0.2= 5÷
=
×1.5+3=
=
×1.5=
﹣
= 1﹣137.5%=
﹣
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÷9= 1﹣
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×
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÷
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÷
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+
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+
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÷
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﹣
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×
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