GMAT Quant Cheat Sheet

Arithmetic Remainders The Remainder is the number leftover after you divide two numbers. DividendDivisor=Quotient+Remainder Example: 5/2=4, with a remainder of 1 Note that the remainder can never be larger than the divisor. Fractions/Percents (ab)/(cd)=(a*d)/(b*c) (a/b)+(c/d)=(a*d)/(b*d)+(c*b)/(b*d)=(a*d+c*b)/(b*d) (a/b)*(c/d)=(a*c)/(b*d) x%=x/100 Percent Change= Final Value – Initial ValueInitial Value*100 Common Fractions   1/2=0.5 1/3=0.3 1/4=0.25 1/5=0.2 1/6=0.16 1/8=0.125 1/20=0.05 1/25=0.04   Roots √x is called the Square Root. The answer is the number that is x when multiplied by itself. 3√x is called the Cubic Root. The answer is…

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Data Sufficiency Strategy

A lot of test takers struggle with the Data Sufficiency questions in the quant section. If you haven’t seen these yet, you will. Data Sufficiency questions turn the tables on a regular question: rather than giving you the information required to solve a question and asking for the answer, Data Sufficiency questions give you a question and ask for the information required to solve that question. It is important to note that in the Data Sufficiency section, you do not actually need to solve the…

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