Arithmetic
Non-traditional Methods
Vedic Methods
Trachtenberg Methods
"Dot to Pretend" Subtraction
Techniques for Checking Answers
Digit Roots and Casting Out Nines
Addition
Glossary Page
Subtraction
Glossary Page
"Dot to Pretend" Subtraction
Multiplication
Glossary Page
Division
Glossary Page
Order of Operations
Glossary Page
Divisibility
Divisibility by 2, 5 and 10
Divisibility by 3, 6 and 9
Divisibility by 4, 8 and 16
Divisibility by 7
Divisibility by 11
Divisibility by 13
Divisibility by other numbers up to 25
Glossary Page