Save precious minutes on the SAT, GMAT, or GRE.
The secret? It isn't a high IQ—it’s a set of specific shortcuts and patterns that bypass the clunky "carrying" and "borrowing" we learned in grade school. Here are the most effective mental math tricks to sharpen your brain, plus a link to our comprehensive at the end. 1. Multiplication by 11 (The "Gap" Method) Multiplying any two-digit number by 11 is instant. Save precious minutes on the SAT, GMAT, or GRE
If you are at a register and need to subtract a price from a large round number, use the rule. Example: 1,000 - 648. Subtract 6 from 9 = 3. Subtract 4 from 9 = 5. Subtract 8 from 10 = 2. Result: 352. Why Master Mental Math? Here are the most effective mental math tricks
Mental arithmetic is like a gym workout for your prefrontal cortex, improving memory and focus. If you are at a register and need