精选优质文档-倾情为你奉上GB/T8170-2008 数值修约规则与极限数值的表示和判定考试题一、名词解释(每题5分)(1)数值修约:(2)修约间隔:(3)0.2单位修约:(4)0.5单位修约:二、计算(每题4分)(1)60.38修约到个数位的0.5个单位(或修约间隔为0.5):(2)60.25修约到个数位的0.5个单位(或修约间隔为0.5):(3)18.2323修约到0.1:18.2(4)18.2723修约到0.1:18.3(5)18.65003修约到0.1:18.6(6)18.5500修约到0.1:18.6(7)18.6500修约到0.1:18.6(8)18.0500修约到0.1:18.0(9)18.修约到0.1:18.1(10)830修约到百数位的0.2个单位(或修约间隔为20):(11)842修约到百数位的0.2个单位(或修约间隔为20):(12)-355修约到十位数:-360(13)-4.55003修约到0.1:-4.6(14)16.50(+)表示:实际值大于16.5(15