Orange Test
Optiver 80-in-8 Mental Math Test
Realistic Test Mode
Realistic Test Mode
This mode replicates the actual Optiver 80-in-8 test with 80 questions in 8 minutes, covering mixed arithmetic operations including decimals, fractions, multiplication, division, and basic algebra.
Performance
Finish at least one session to show your performance
Progress chart
Finish at least two sessions to show your progress chart
Practice Modes
Mixed Practice
Practice with a variety of question types including fractions, decimals, multiplication, division, and whole-number arithmetic all mixed together.
Performance
Finish at least one session to show your performance
Progress chart
Finish at least two sessions to show your progress chart
Speed Focus
Emphasize speed and accuracy under time pressure with rapid-fire questions designed to build mental calculation speed.
Performance
Finish at least one session to show your performance
Progress chart
Finish at least two sessions to show your progress chart