一个圆柱体水桶，底面积半径为20厘米，里面盛有80厘米深的水，先将一个底面积周长为62.8厘米的圆锥体铁块沉浸在水桶里，水面比原来上升了求圆锥体铁块的高．
直接写出得数．16×= ×= ×= ÷=÷= 9÷= ××=
直接写得数×5= ÷= 10×= ÷=×÷×= 99×+= 3﹣﹣= 1÷4×=（）÷6= ÷÷1=
直接写出得数．×40= = 25×= == = 1﹣50%= ÷== ×=
直接写得数．×= ÷2= ×14= 10×=×2= ×= ÷= ÷=
直接写出得数×10= += 52×=9÷= ÷= 11﹣=0÷×= ﹣+= 1÷9×=
求圆锥体铁块的高．求圆锥体铁块的高．
= 
×
= 
×
= 
÷
=
÷
= 9÷
= 
×
×
=
×5= 
÷
= 10×
= 
÷
=
×
÷
×
+
= 3﹣
﹣
= 1÷4×
=
）÷6= 
÷
÷1=
×40= 
= 25×
= 
=
= 
= 1﹣50%= 
÷
=
= 
×
=
×
= 
÷2= 
×14= 10×
=
×2= 
×
= 
÷
= 
÷
=
×10= 
+
= 52×
=
= 
÷
= 11﹣
=
×
= 
﹣
+
= 1÷9×
=
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