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Questions and Answers
Which statement correctly defines divisibility by 2?
Which statement correctly defines divisibility by 2?
- A number is divisible by 2 if it ends in an odd number.
- A number is divisible by 2 if it ends in an even number or zero. (correct)
- A number is divisible by 2 if it is a multiple of 4.
- A number is divisible by 2 if the sum of its digits is even.
What is the criterion for a number to be divisible by 3?
What is the criterion for a number to be divisible by 3?
- The last digit must be a multiple of 3.
- The number must end in a zero.
- The sum of the digits must be even.
- The sum of the digits must be divisible by 3. (correct)
Under which condition is a number divisible by 4?
Under which condition is a number divisible by 4?
- When the last digit is even.
- When the last two digits form a multiple of 4. (correct)
- When the number is even.
- When the number has at least two non-zero digits.
Which of the following indicates a number is divisible by 5?
Which of the following indicates a number is divisible by 5?
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Which condition is NOT a criterion for a number to be divisible by 6?
Which condition is NOT a criterion for a number to be divisible by 6?
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Study Notes
Divisibility Criteria
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A whole number is perfectly divisible by another whole number if it meets specific conditions.
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Divisibility by 2:
- A number qualifies if it ends with an even digit (0, 2, 4, 6, 8).
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Divisibility by 3:
- The sum of all digits in the number must also be divisible by 3.
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Divisibility by 4:
- A number is divisible if its last two digits form a number that is divisible by 4.
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Divisibility by 5:
- The number must end in either a zero or the digit 5 to be divisible by 5.
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