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Problem 150

Number theory Difficulty 1.2 Multiple choice CEMC Gauss (Grade 7) · Canada · 2026

Which digit is in the thousands place of the number 12 63512\,635?

Pick one

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Official solution

Beginning at the rightmost digit and moving left, 55 is in the ones (units) place, 33 is in the tens place, 66 is in the hundreds place, 22 is in the thousands place, and 11 is in the ten-thousands place. Thus,
the digit in the thousands place is 22.

Source: CEMC, University of Waterloo, licensed CC-BY-NC-4.0. Statement reproduced verbatim; metadata (topic, difficulty, ordering) added by this project.