圆锥的体积比与它等底等高的圆柱体积少2倍. .(判断对错)
6.9995用“四舍五入”法精确到百分位是7.00.(判断对错)
2.589用四舍五入法凑整到千分位约是2.599..(判断对错)
9.99四舍五入保留一位小数是10.0..(判断对错)
2.04保留一位小数约是2..(判断对错)
3.078是循环小数,保留三位小数是3.078..(判断对错)