R3CK0N

Train: timed mental math drills

Every drill in R3CK0N, each one timed and scored for speed and accuracy:

• Math: addition, subtraction, multiplication and division from very easy to hard, a custom blend, a Focus mode that re-asks your misses, plus GRE Quant and quant interview drills.
• Secret: every technique in Secrets of Mental Math, chapter by chapter.
• Zen: a numpad typing test scored in keys per second.

Want something lighter? Try the Arcade.

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