Senior Mathematical Challenge styleMultiple choice · A–EInspired by the format · not an official paper
When is written as an ordinary whole number, how many digits does it have?
Easy · original practice
SMC warm-up
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Format, timing & official papers
Original warm-ups inspired by SMC problem-solving. The 2026 SMC has 22 multiple-choice questions followed by three 000–999 integer-answer questions in 90 minutes. No calculator. This bank practises the multiple-choice format; your result is a raw practice score.
Official guidance & papers ↗Timed rounds select 10 questions from this bank, with 4 minutes per question. Your score is practice feedback, not a prediction of an official result.
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