Solve addition, multiplication and division in your head. Ten free timed Mental Math rounds award more points for answers closer to the correct result.
Start to reveal the question and its time limit. Type an answer and press Enter before time runs out. An exact result earns full points. Nearby answers earn partial credit, with increasing bonuses for consecutive correct leading digits.
Three addition questions lead to three multiplications, three divisions and a mixed-operation finale. Later rounds offer more points.
Break a calculation into easier steps. Check multiplication when dividing, and use the normal order of operations in the finale.
Ten rounds add up to an Instinct Score of 0–1000. Round limits rise from 40 to 220 points. Instinct’s Core separately measures how accurately you predicted your rank; it waits for at least 30 other comparable attempts. These games are informal benchmarks, not a diagnostic assessment.