How to play Sum and Subtract?

Sum and Subtract is a fast-paced twist on the original Sum game, designed to test not just your speed, but your focus and accuracy under pressure.


In this version, numbers come in two colors:

• Green numbers should be added
• Red numbers should be subtracted

Your goal is simple, but the challenge ramps up quickly:

• Calculate the total by summing all green numbers and subtracting all red ones.
• You have 20 seconds to solve each round.
• If you submit the wrong answer, the game ends immediately.
• Each level adds more numbers to the screen, increasing the difficulty and the risk of mistakes.

As you progress:

• The mix of red and green numbers becomes trickier to manage.
• Your score increases with each correct level completed.
• Stay sharp - one wrong calculation can cost you the game.

When the game ends, you'll earn points based on how far you made it. These points can be used to unlock new minigames and experiences within the app.