The arithmetic for GMAT is simple, as is practically everything about GMAT. Attention: Simple does not mean easy! It is not easy because you have the TIME constraint and your own pride. We all make the mistake of paying less attention to something because is easy. I am not saying to you have to pay more attention to the problems. The GMAT problems are not THE PROBLEM. TIME is THE PROBLEM. Remember the formulas and practice with them until they...

What I discovered using the 2005 edition of “Cracking the GMAT” (The Princeton Review) was that algebra problems can be solved without using algebra, but an easier method: plugging in. Basically you just replace with number the unknown data represented with letters. Sounds stupid, but it works and you gain time. Plugging in a number in the question: Pick one or more numbers to replace the letters in the problem (question) Using your...

The math problems at GMAT are basic from 3 areas: Arithmetic, Algebra and Geometry. Basic arithmetic operations: addition (8+8) subtraction (8-4) multiplication (8×3) division (8/2) raising to a power finding a square root Fraction: x/y (part/whole) x = numerator, y = denominator. Decimals are in English indicated by a point. Ratio: The whole in ratio is sum of all parts. If ratio is a fraction the whole is the sum of the numerator and...

You can find a lot of information online about the GMAT. I will only write what I thought it was important. Although most of the information required for the math part is basic, I was surprised to notice that time passed and my knowledge about math was fuzzy sometimes and I also need it an update of the English equivalents of the terms used. Integers = negative or positive numbers. Do not include fractions. = odd or even. a=b x q + r (q=quotient...

What you need to remember is that GMAT geometry problems always involve more than one step and that when a GMAT problem offers you just a ratio as answer, without any numbers to start from, you need to plug-in any number in the formulas you use. Some basic tools refer to remembering number replacement and measurements used by GMAT. You need to memorize the following approximations: Π = 3, √1 = 1, √2 = 1.4, √3 = 1.7, √4 = 2 For those...

On data sufficiency GMAT problems all the drawings are useless in solving the problem. Also remember TIME is of the essence. If you written down more than three rows of formulas for any GMAT problem … STOP … click on any answer and move on. The closer you think you are to the answer, the more time you loose! If a question asks “what is x?” it means: can a single value for x be found? For data sufficiency GMAT problems, when see the...