在一只底面直径是40厘米的圆柱形盛水缸里，有一个直径是10厘米的圆锥形铸件完伞浸干水中．取出铸件后，缸里的水下降0.5厘米，求铸件的高？
直接写得数． 20×=÷=×=÷6=×12=×=
直接写得数．×=﹣=×=×=÷=÷=÷=÷=
直接写得数÷=×=﹣=×1.4= 12×= 24×=+= 0÷=
直接写得数== 3÷========
直接写得数．×16= 12÷= 0.3×=×÷=÷= 0×+=×÷×=
=
÷
=
×
=
÷6=
=
×
﹣
=
×
=
×
=
÷
=
÷
=
÷
=
÷
=
÷
=
×
=
﹣
=
×1.4=
= 24×
=
+
= 0÷
=
=
= 3÷
=
=
=
=
=
=
=
=
×16= 12÷
= 0.3×
=
×
÷
÷
= 0×
+
=
×
÷
×
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