Hush, little digger, don't say a wordPapa's gonna scoop you a pile of dirt. And if that dirt starts to overflowPapa's gonna find you a red backhoe.There's rough and tumble fun to be had in the sandbox
How many nickels are in a quarter? Whose face is on the fifty-dollar bill? You'll find the answers to these questions and many more in this exuberant introduction to denominations, from the penny to t
