Divisibility Rules
Math ⇒ Number and Operations
Divisibility Rules starts at 6 and continues till grade 10.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Divisibility Rules.
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See sample questions for grade 9
Explain the divisibility rule for 11.
Explain why 123456 is not divisible by 7.
Explain why 123456789 is not divisible by 11.
Find the smallest 3-digit number divisible by 7.
Is 2222 divisible by 2, 3, or 5?
Is 555 divisible by 5 and 11?
State the divisibility rule for 4.
State the divisibility rule for 5.
Which of the following is NOT a divisibility rule?
(1) For 2, check if the last digit is even.
(2) For 3, check if the sum of digits is a multiple of 3.
(3) For 5, check if the last digit is 1 or 5.
(4) For 10, check if the last digit is 0.
Which of the following numbers is divisible by 11?
(1) 121
(2) 123
(3) 132
(4) 143
Which of the following numbers is divisible by 12?
(1) 120
(2) 132
(3) 144
(4) All of the above
Which of the following numbers is divisible by 3?
(1) 1234
(2) 1236
(3) 1245
(4) 1257
A number is divisible by 12 if it is divisible by both _______ and _______.
A number is divisible by 15 if it is divisible by both _______ and _______.
A number is divisible by 18 if it is divisible by both _______ and _______.
A number is divisible by 20 if its last digit is 0 and the number formed by the remaining digits is divisible by _______.
If a number ends in 0, is it always divisible by 10?
If a number is divisible by 2 and 5, is it always divisible by 10?
If a number is divisible by 2, 3, and 5, is it always divisible by 30?
If a number is divisible by 4 and 6, is it always divisible by 12?
