GMAT Tip: Doing 'Mental Math'

Use estimates where possible and simplify complex calculations. Photograph by Amy Eckert

The GMAT Tip of the Week is a weekly column that includes advice on taking the Graduate Management Admission Test, which is required for admission to most business schools. Every week an instructor from a top test-prep company will share suggestions for improving your GMAT score. This week’s tip comes from Mike McGarry, lead GMAT content creator at Magoosh.

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