2 Digit Multiplication : iPhone

2 Digit Multiplication

English / 日本語

2 Digit Multiplication Ver1.3

October 3 ,2010 released

2 Digit Multiplication Lite Ver1.2

November 13 ,2010 released

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Learn and Exercise How to multiply double digit numbers quickly.

19×17
(19＋7)×10 + 9×7 = 323 (Method-A1)

58×58
((5×5)＋8)×100 ＋ 8×8 = 3364 (Method-A6)

* Lite Version : limited 3 Methods. +Ad.