Estimation~ estimation is the process of determining approximate values in a variety ofsituations.fnding a number that isclose enoughto the right answer.You arenottrying to get theexactright answerWhat you want is something that isgood enough(usually in a hurry!Why"Estimation can save youmoney # $uic% estimation can show how much you should pay before buying somethingEstimation can save youtime : we do not need much time to calculate the exact number.Estimation can save you from ma%ingmistakes with your calculator# estimation will let you %now that you have wrongly typed the number on the calculator. We can use estimation to double chec% everyting.Estimation helps youfocuson what isreally going on.Estimation also %eeps our mind active.advantageEstimation will boost homework and assessment skillFasterestimation & help students become better problem solvers faster in learning addition, subtraction, multiplication ,and division facts 'rain become more active.disavantageNot really accurateRiskBare to losingannot be so trust in estimate!alk only about thinkingan give false result"t is not good to rely on something that are estimated