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Understanding Divisibility: Determining If One Number is Divisible by Another

This lesson explores the concept of divisibility through examples. We examine whether specific numbers are divisible by others. For instance, 976 is divisible by 2 because it ends in 6. Similarly, 790 is divisible by 5, as it ends in 0. Furthermore, we assess if 2,451 is divisible by 3 by calculating the sum of its digits, which is 12, and since 12 is divisible by 3, so is 2,451. Through clear examples, we aim to develop a strong understanding of the divisibility rules.

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Understanding Divisibility: Determining If One Number is Divisible by Another

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  1. COURSE 3 LESSON 4-1 Factors Is the first number divisible by the second? Explain. a. 976 by 2 Yes, 976 ends in 6. b. 790 by 5 Yes, 790 ends in 0. c. 2,451 by 3 Yes, the sum of the digits is 12, and 12 is divisible by 3. 4-1

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