2 Digit Multiplication

Yasuyoshi Ota · Education

$1.99

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What changed · US

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Sep 6, 2026
New version 2.1.6 → 2.1.8

performance improvements

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No in-app purchases.

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About

Learn & Exercise How to multiply double digit numbers quickly. 19x17 (19+7)x10 + 9x7 = 323 (Method-A1) 58x58 ((5x5)+8)x100 + 8x8 = 3364 (Method-A6)

What's new · 2.1.8

performance improvements

Details

DeveloperYasuyoshi Ota
ReleasedOct 2010
UpdatedOct 2025
Version2.1.8
Size1 MB
RequiresiOS 12.0 or later
Age rating4+
LanguagesEnglish, Japanese
Price$1.99
Categories EducationLifestyle
Bundle IDjp.hasshokukou.mathmethod