Level of Difficulty E M
If you start with the largest three-digit integer, 999, and start counting backwards remembering that a number divisible by 10 must end in 0, you get to 990 within seconds, and that would be the answer you would fill into the grid section of the answer key.
It's appropriate here for students to review the rules of divisibility
, a topic taught in elementary school but easily forgotten. Memorize them before taking your SAT exam.
For more practice with divisibility questions, go to Skill Set 25: Divisibility/Remainder Problems.
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