This book answers the questions: How do you add numbers together? How do you subtract numbers from each other? How do you divide? How do you multiply? What is the total price of your shopping? How much should you get back in change? How do you calculate the unit price for an item?
The four arithmetic operations are reviewed and you are shown how to calculate without a calculator. The order of operations is also explained.
Concrete problems are worked with from everyday life connected to shopping. The idea is to explore and explain various perspectives related to the four arithmetic operations and their calculations.
The book is designed to be used from age 12 through adult education as well as in interdisciplinary courses and projects in mathematics.
