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Reckoning Skills

Reckoning Skills

Sharpen mental math skills quickly.

Science & EducationSECUSO - Security Usability SocietyOfficial WebsiteEducationMathematicsLearning

Description

Improve your math with addition, subtraction, multiplication, and division. Pick from four difficulty levels and get instant feedback. No ads or permissions—just pure practice. Developed by SECUSO at TU Darmstadt. Learn more at https://secuso.org/pfa.

Screenshots

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