Can I read Math Tricks for Quick Calculations on EtoBox?

Math Tricks for Quick Calculations by Desy Irawati is a document available to read on EtoBox.

What is Math Tricks for Quick Calculations about?

The document provides a method for performing calculations without paper or pencil by doubling odd numbers and halving even numbers. It explains that if both numbers are even, one can choose which to double and half, and if the numbers remain unreasonable, the process can be repeated. Additionally, it illustrates the method with examples of multiplying 12 by 15, showing different approaches to arrive at the same result of 180.

Author

Desy Irawati

Language

EN