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Which of the following is a rule of divisibility?
Which of the following is a rule of divisibility?
- Adding the digits of a number and checking if the sum is divisible by 3 (correct)
- Multiplying the first and last digit of a number and checking if the product is divisible by 5
- Doubling the last digit of a number and checking if it is divisible by 2
- Subtracting the last digit of a number from the rest of the number and checking if the result is divisible by 9
What is the purpose of a rule of divisibility?
What is the purpose of a rule of divisibility?
- To determine if a number is prime
- To determine if a number is odd or even
- To determine if a number is a multiple of 10
- To determine if one number is a factor of another (correct)
Which of the following is an example of a rule of divisibility?
Which of the following is an example of a rule of divisibility?
- Checking if a number is divisible by 5
- Checking if a number is divisible by 10
- Checking if the sum of the digits of a number is divisible by 9 (correct)
- Checking if a number is divisible by 2
Which of the following is a rule of divisibility for determining if a number is divisible by 3?
Which of the following is a rule of divisibility for determining if a number is divisible by 3?
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Which of the following is a rule of divisibility for determining if a number is divisible by 9?
Which of the following is a rule of divisibility for determining if a number is divisible by 9?
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Which of the following is a rule of divisibility for determining if a number is divisible by 4?
Which of the following is a rule of divisibility for determining if a number is divisible by 4?
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Which of the following is a rule of divisibility for determining if a number is divisible by 8?
Which of the following is a rule of divisibility for determining if a number is divisible by 8?
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What is the purpose of an LCM (Least Common Multiple)?
What is the purpose of an LCM (Least Common Multiple)?
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