Do Sums app for iPhone and iPad

4.4 ( 9864 ratings )

Games Education Action Educational
Developer: HTZeroOne

0.99 USD

Current version: 1.1, last update: 7 years ago
First release : 31 May 2012
App size: 5.02 Mb

Protect a treasure from pirates.
Sink a pirate ship with a cannon shoot.
In order to sink the pirate ship, you should calculation.
There are four operation codes.(+,-,×,÷)
There are three kinds of difficulty.(easy, normal, hard)
Each difficulty has 32 levels.
Lets play game and improve numerical ability.

How to
1. Touch pirate ship.
2. Pirate ship turns green. check equation.
3. Enter the result of calculation with the number buttons.
4. Fire a cannonball with touching Fire button.
5. If you answer wrong, the touch of Fire button and then re-enter.