This math topic focuses on practicing basic divisibility rules for numbers 2, 3, 9, 10, and 1. Each question tests the understanding of a specific rule that determines whether a given number is divisible by these divisors. Multiple choice answers are provided for each divisibility condition, requiring the learner to select the correct condition that applies to each divisor, such as recognizing even numbers for divisibility by 2 or sum of digits for divisibility by 3 and 9. The topic aims to strengthen foundational skills in recognizing patterns in numbers that meet specific divisibility criteria.
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What tells you that a number is divisible by 9?