Add Subtract Multiply Divide and Time - David Eastwood - Bog

Do you understand Math?
Usually it's yes or no. For people who said "no", there's Math Without Calculators. I'll simplify how it works.
Go to MathWithoutCalculators.com and watch a video. Then, find lesson the lesson in a workbook and fill out the lesson form. Homework, you need to go over what you filled out with a checker (Family, friend, or classmate).
The checker triples your rate of learning and you can pass the test. If you don't, go over it again, so you'll pass it next time. It really works!!!
Student and teachers love it!