PercentErrorPractice:Roundthepercentstothenearesttenthwhennecessary.
1)Takealookatthisgumballmachine.Howmanygumballsdoyou
thinkitcanhold?Recordyourestimatebeforereadingnumber2.
2)Onthewebsite,itsaysthatthegumballmachinecanhold21,250
gumballs.Calculateyourpercenterror.
3)Julieestimatedthegumballmachinecouldhold5,000gumballs.What
wasJulie’spercenterror?Whatwasthedifferenceinyourpercenterror
andherpercenterror?DidyougiveabetterestimateordidJuliegive
thebetterestimate?
4)Johnestimatedthatthismachinecanhold1,000quartersattime
beforesomeoneneedstocomeandcollectthemoneyfromthemachine.
Themachinecanactuallyhold1,500quarters.WhatwasJohn’spercent
error?
5)Fromlookingatthephotoandcomparingtheboytothegumball
machine,Maxestimatedtheheightofthegumballmachinetobe6foot2
inchestall.Theactualheightofthemachineis79inches.Whatwas
Max’spercenterror?
6)Annaestimatedtheweightofaparticularrhinocerostobe3,000lbs.The
actualweightoftherhinoceroswas4,600lbs.WhatwasAnna’spercent
error?
7)Annaalsotriedtoestimatetheheadandbodylengthoftherhinoceros.
Sheestimatedtherhino’sheadandbodylengthtobe13feetlong.Thehead
andbodylengthofthisrhinocerosis12.3feetlong.Whatwasherpercent
error?
8)GeorgeestimatedthedistancefromthegroundtothehighersideoftheLeaningTowerofPisatobe110feettall.The
actualdistancefromthegroundtothehighersideoftheLeaningTowerofPisais185.93feet.WhatisGeorge’spercent
error?
9)AmyestimatedtheheightoftheEiffelTowertobe1,200feettall.TheEiffeltowerisactually984feettall.WhatisAmy’s
percenterror?
10)JohnestimatedtheheightoftheStatueofLibertytobe299feettall.TheactualheightoftheStatueofLibertyis305
feettall.WhatisJohn’spercenterror?