P – EC – PP30
Would a better referent be 10 or 50 for estimating the number of animals?P – EC – PP31
Would your estimate of animals be more or less than 100?P – EC – PP16
What would you use as a reference to estimate the number of books in the pile?P – EC – PP17
Would a better referent be 10 or 25 for estimating the number of books in the pile?Page 228 of 307