Mental multiplication: 8-digit by 8-digit, World Cup rules
How it works
Each task is two 8-digit numbers. Multiply them in your head and write the full product. You have 10 minutes.
The numbers stand one above the other, as on the World Cup sheet. You can put them in one row in the settings.
Scoring
As in the 2024 World Cup rules: one point for each right answer, one point off for each wrong answer, and the score never goes below zero.
For reference
The winning multiplication score at the 2024 Mental Calculation World Cup was 25 points.
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