1. Section 1

1.34. Launch

Mathematics 20-3 Module 1

Section 1: Personal Budgets

 

Launch

 

Did You Know?

Daniel Tammet is a remarkable young man who can perform incredible calculations in his head. He was asked to divide 13 by 97 in his head and gave the answer to more than 32 decimal places! This is just one of his abilities; for instance, he learned to speak Icelandic in just fifteen hours. To learn more about Daniel, you can access a BBC documentary on the Internet titled The Boy with the Incredible Brain.

This section checks to see if you have the necessary background knowledge and skills required to successfully complete this lesson.

 

Complete the following Are You Ready? questions. If you have difficulty or any questions, visit Refresher for a review or contact your teacher.

 

Important skills you can use to analyze budgets are

  • estimating
  • mental math

You can use estimating as a check to see if amounts on your calculator or on a spreadsheet are reasonable. It is easy to make a mistake when entering data or by applying the wrong operation. Have you ever switched two digits by mistake or pressed the division key when you intended to press the multiplication key? Estimation skills can help you identify these common errors everyone makes!