一圆锥形的沙堆，底面直径是6米，高1.8米，它的体积是多少？
直接写得数．﹣= 8÷0.4=﹣=+=﹣= 7﹣6.38=+=+=0.22×0.5= 10﹣4.8﹣3.2=
直接写出得数．=== 10﹣8.9= （）×24= 42÷= 2.7×= 5.2÷10%=
直接写出得数． ﹣= 8.73+27=×3=×= 0.3×= 5﹣= 8.4÷0.7= 0.75÷=
直接写得数．×=+= 2.78+2.12= 1.25×8= 6÷=﹣=÷= 81÷0.3=
直接写得数．×45=+= 6.3÷0.01= 2.5+1.25= 6﹣﹣=÷= 390×0.02= 510﹣240= 0.13= 10×÷10×=
﹣
= 8÷0.4=
﹣
=
+
=
﹣
= 7﹣6.38=
+
=
+
=0.22×0.5=
=
=
= 10﹣8.9=
）×24= 42÷
= 2.7×
= 5.2÷10%=
﹣
= 8.73+27=
×3=
×
=
= 5﹣
= 8.4÷0.7= 0.75÷
=
×
=
+
= 2.78+2.12= 1.25×8=
=
﹣
=
÷
= 81÷0.3=
×45=
+
= 6.3÷0.01= 2.5+1.25= 6﹣
﹣
=
÷
= 390×0.02= 510﹣240= 0.13= 10×
÷10×
=
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