An extension to work out your brain
Mental Calculation Extension
Increasing Difficulty: Conquer the challenge by answering questions correctly and watch as the difficulty level rises.
Against the Clock: Race against time with a countdown timer to add an extra layer of excitement.
Three-Figure Operations: Reach a milestone of 20 consecutive correct answers to unlock challenging three-figure operations.
Sleek Design: Enjoy a visually pleasing and user-friendly interface for an immersive gaming experience.
Source Manifest.json
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