Four self-timed sets. Twenty-two questions each. Easy to unforgiving — built so you can sit down and finish it alone.
Choose a set below and set a timer between 10 and 60 minutes. The test ends automatically when time runs out, and your score reflects only the questions you actually answered. Every question includes a hint and a full worked explanation, revealed the instant you choose an answer.
Prefer paper? Print the complete 88-question workbook, laid out to save ink, with a full answer key on the final page.