App Description
± (Plus Minus) is a brain trainer.
You do not calculate from a formula, but create a formula from an answer.
A formula contains two numbers and one symbol.
Symbol is + (plus) or - (minus).
One game has five questions.
-----------------------
Sounds：魔王魂
iPhone Screenshots
(click to enlarge)
App Changes
- October 24, 2015 Initial release
Other Apps From Ryosuke Hazuki
