This math topic focuses on understanding and applying basic divisibility rules for numbers. The problems guide learners through identifying the conditions under which a number is divisible by 10, 2, 9, 3, and 1. For instance, learners are asked to determine what characteristic makes a number divisible by 10, such as its last digit being 0, or what sum of digits makes a number divisible by 9. The activity serves as an introduction to divisibility rules, facilitating learners' ability to recognize patterns in numbers and apply these rules to simplify computations and solve problems effectively.
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What tells you that a number is divisible by 3?