配制一种农药，药粉和水的比是1：500，（1）现有水6000千克，配制这种农药需要药粉多少千克？（2）现有药粉3.6千克，配制这种农药需要水多少千克？
直接写出得数．======== 1.2×0.5= 0.16÷0.8= 0.32= 53=
计算．﹣﹣=﹣﹣=+﹣=
直接写出得数． ①= ②= ③= ④= ⑤= ⑥= ⑦= ⑧0.52= ⑨= ⑩1+2÷3=
直接写出结果﹣= 270÷18= 2÷= 10×10%= 5﹣0.25+0.75= ：= 7×÷7×= 042﹣0.32= 341﹣103= 1÷×=
直接写得数 ①+= ②1﹣0.25= ③0.72÷0.6= ④125×8= ⑤25×17×4= ⑥13×10.2=
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= ②
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= ⑦
= ⑧0.52= ⑨
= ⑩1+2÷3=
﹣
= 270÷18= 2÷
= 10×10%= 5﹣0.25+0.75=
=
7×
×
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+
= ②1﹣0.25= ③0.72÷0.6=
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