How Many Are Hidden? Piggy Bank
What do you notice? How many pennies do you see?
Now I put some of the pennies in my piggy bank.
How many are hiding in the piggy bank? Use math words, numbers, or pictures to explain how you know.
What equations match the picture? How do you know?
Pretend you have a piggy bank and 10 pennies. How many will you hide inside your bank? How many will be on the outside? Draw a picture—remember, there should be 10 pennies in all!