Contains everything on a level by level basis based on "Secrets of Mental Math" by Arthur T. Benjamin and Michael Shermer. However, you can use these decks even if you do not have this book as it doesn't really depend on that. The best thing is that you can start as a beginner from the addition and subtraction and gradually go up to the 2 digit squares, 2/3 digits multiply and divide, percentage, Compound Interest then mnemonics and the final one. These mnemonics are based on the book which you can also find on
http://numzi.com/numzi/
Problems were generated using
python scripts manually
The card contains the following subdecks:
Add/Subtract - 3 Digit
Add/Subtract - Big
Compound Interest
Cube - 2 Digit
Division - 4 by 2
Fractions - 2 Digit
Fractions - 3 Digit
Mnemonic (Number to Text and Text to Number)
Multiplication - 2 Digit
Multiplication - 3 Digit
Multiplication - 3 Digit
Multiplication - Big
Percentage
Square - 2 Digit
Square - 2 Digit
Square Root