Sum

Simple addition and subtraction game, practice basic math without pressure while having fun.

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How to play:

The game screen has of 2 sections:

• The add/sub buttons section at the top
• The problem/score section at the bottom

First pay attention to the red-bordered block (goal box) at the bottom-left corner of the screen, that's your main target, your current number is displayed on the orange block at the bottom-center of the screen (current box).

You have to click the add/sub buttons at the top accordingly to get your "current box" and "goal box" to display the same number. Once the red-bordered block (goal number) and the orange block (current number) are the same you'll get a score.

Note: If the numbers are already the same, you have to change it purposefully in order to change it back to the desired number and get the score to move on to the next goal.

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More levels:

Under this description there is an unfinished but playable level 2 of this sum game, feel free to download and run level 2 (v2) by opening the "Sum v2 (Playable but unfinished).html" file in any browser.