Addition & Subtraction Decimal Numbers Double of a number Half of a number 4 times of a number One-fourth of a number Division By 5 Multiplication by 5 Division By 25 Multiplication by 25 Division By 50 Multiplication by 50 Table up to 99 Multiplication 2 digit by 2 digit Square of a number Cube of a number Square root of a number Cube root of a number
