Test Instructions

1. A prompt will appear. Click 'Show Question' within 5s or it shows automatically.
2. The question is displayed for 5s. Read it carefully.
3. The question hides. You have 30s to solve it mentally and type the numerical answer.
4. Enter your answer and press Enter or click Next.

Scoring:

• Correct answers score 1 point (unless bonus applies).
• Items 20-22: Correct & ≤ 20s = 2 points; Correct & 21-30s = 1 point.
• Incorrect or timeout scores 0 points.
• Test stops after 3 consecutive 0-point scores (from item 3 onwards).

Sample Problem: 'Lou has six grapes. He eats three. How many grapes does he have left?' (Answer: 3)