True or False

Rules

1. A 3-second countdown, then the GO signal.
2. A solved sum appears, like «7 × 8 = 54».
3. Say whether it is true or false with the T and F keys or by clicking.
4. You get 45 s from the signal.

How scoring works

Every right answer scores, more the faster you answer, and every wrong one costs you.

Levels

• Gold level1,900 points
• Silver level1,300 points
• Bronze level700 points

Levels are earned by result; medals are only for the CCI Olympics.

Tips

• You do not need the exact result: if the last digit or the size is off, it is false.
• When in doubt, rule out: the last digit is often enough to tell which one it is not.

Event ranking

See the full ranking