from RYOHEI SATO, originally released 19th September, 2011

"Sum quiz" is train your brain.

Simple rules.

Used in addition to favorite number from 1 to 9,

"Exactly the given number" to

"Great for the specified number of times," Let's make on.

For example, In nine to 58,

9 +9 +9 +9 +9 +3...

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