True or False in the browser
True or False shows a finished sum. Decide whether it is right or wrong. Half the rounds are correct; half are off by a small amount. Fifteen seconds of easy mental checks.
Controls
Tap True or False. Keys: 1 true, 2 false.
Scoring
Correct verdicts add points until the clock ends. Best score stays on this device.
Want a longer walkthrough? How True or False Checks a Sum.