Question

Abe wants to know how many pennies fit in different sized jars.


What could he do to investigate his question?
Fill different sized jars with pennies, and count how many pennies are in each jar.

Fill the smallest jar with pennies and then double the amount for each larger jar.

Fill the smallest jar with pennies, the next larger jar with nickles, the next larger jar with dimes, and the largest jar quarters.

Place 20 pennies in each jar and then guess how many more is needed to fill each jar.