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Notallmathskillsarelearnedintheclassroom.Someofthemcome...
問題詳情:Notallmathskillsarelearnedintheclassroom.Someofthemcomenaturally.Considerthesplit-secondcalculations youmakewhenyouestimate(估計)thenumberofemptyseatsontheschoolbusorthenumberofcookiesinacookieja...
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