Have you ever seen seals at the zoo? They are fascinating animals.
Jonah loves working with the seals. In fact, he learns more and more about them every day. One day when he arrived at work, Jonah discovered that there had been a new baby seal pup born the night before. The workers at the zoo had weighed the new pup and his mother just that morning. The mother seal had weighed 157 pounds when she had been weighed alone. The combined weight of both the Mother and pup was 171 pounds.
What did the new pup weigh?
To figure this out, you will need to understand how to subtract whole numbers. Pay close attention and you will learn all that you need to know in this Concept.
Click into the book above to read about Whole Number Subtraction.
Use this site for online practice:
Whole Number Subtraction Practice
