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Mental math strategies, drills, and Optiver prep articles.
division
Division Speed Methods for Mental Math
Make division easier by using multiplication facts, chunks, and number sense.
2026-03-25
addition
How to Get Faster at Mental Addition
Simple techniques to improve your mental addition speed.
2026-03-25
multiplication
Multiplication Patterns You Should Know
Use patterns, breakdowns, and number sense to make multiplication much faster.
2026-03-25
optiver
How to Approach Optiver 80 in 8
A practical strategy for handling speed, pressure, and accuracy in an Optiver-style mental math round.
2026-03-25
subtraction
Subtraction Tricks for Faster Mental Math
Learn how to subtract faster by rounding, counting up, and breaking numbers into easy steps.
2026-03-25