P – EC – PP29
What would you use as a reference to estimate the number of books in the pile?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 – PP32
Would your estimate of people in line be more or less than 200?Page 227 of 307