Mental arithmetic - Study and teaching

These simple math secrets and tricks will forever change how you look at the world of numbers.

Secrets of Mental Math will have you thinking like a math genius in no time. Get ready to amaze your fri

… [more below]

• Author: Benjamin, Arthur
• Binding: Paperback
• Page Count: 304
• Publish Date: August 08 2006
• ISBN10: 0307338401
• Language: English