Question

1. Why do we use the rule of divisibility? 2. Write down the rules for divisibility by 2 to 10.

Answer 1

Answer:

A number is divisible by 2 if the last digit of the number is 0, 2, 4, 6, or 8.

Example 1: Is the number 246 divisible by 2?

Solution: Since the last digit of the number 246 ends in 6, that means it is divisible by 2.

Example 2: Are all the numbers 100, 514, 309, and 768 divisible by 2?

Solution: If we examine all four numbers, only the number 309 doesn’t end with 0, 2, 4, 6, or 8. We can conclude that all the numbers above except 309 are divisible by 2.

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Answer 2

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