Tips & Tricks
The following videos have been designed to help you effectively tackle the quantitative sections of the GMAT and GRE as well as help you save time.
Squaring integers with units digit 5
The "Double Matrix" method (5.2 MB - may take a while to load)
Ratio shortcut (also useful for division estimates)
Greatest common divisor and least common multiple
Multiplication by halving and doubling
Tackling algebraic expressions using "nice" numbers
Solving equations using the "Something Method"
You can find hundreds of GMAT practice questions with video solutions at Magoosh GMAT prep.