Explore the Secrets of Math

Explore The Secrets of Mental Math is beneficial to visual, auditory and/or kinesthetic learners. Author John Wang designed a special child-sized abacus and games for children to learn addition and subtraction. At the California Math Council’s 44^th Annual Fall Conference (2003), John’s daughter, Oriana, then a third-grader, demonstrated her mental math skills. While the teachers used calculators, Oriana used her mind to calculate answers and called them out before the teachers could finish keying in the numbers. When Oriana was 4 years old, she and her teacher had a contest of adding and subtracting five three digit-numbers, such as 578 + 369 – 521 + 988 – 472. Each time Oriana was able to call out the correct answer before her teacher could finish keying in the numbers.

… I had confidence in Tim when he was pitted against a 7-year-old girl, Oriana Wang, in a math contest at her home. The two were given a series of two-and three-digit numbers to add or subtract in their minds. After each problem was stated, Oriana called out the answer almost instantly, beating Tim hands down each time. … Tim assumed that Oriana had learn some special kind of math techniques or secret… He was right…

From Los Angeles Times October 5-6 2002 A3

In this series of Explore The Secrets of Mental Math, CD Wang designed the abacus and introduced his games with the concept and the use of his specially designed child sized abacus. By playing the games of Wang’s Mental Math, the children can do addition and subtraction exercises visually and rapidly.

Explore The Secrets of Mental Math will help your child to:
(1) Learn beginning addition and subtraction using three-digit numbers
(2) Develop concentration
(3) Develop both sides of the brain
(4) Solve problems in a shorter amount of time.
(5) Visualize what they are actually adding and subtracting, making addition and subtraction more concrete.