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Common Divisibility Rules
10
Flashcards
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Divisibility rule for which number? 10
A number is divisible by 10 if its last digit is 0.
Divisibility rule for which number? 3
A number is divisible by 3 if the sum of its digits is divisible by 3.
Divisibility rule for which number? 6
A number is divisible by 6 if it is divisible by both 2 and 3.
Divisibility rule for which number? 7
To check divisibility by 7, take the last digit, double it, and subtract it from the rest of the number; if the result is divisible by 7, so is the original number.
Divisibility rule for which number? 5
A number is divisible by 5 if its last digit is 0 or 5.
Divisibility rule for which number? 2
A number is divisible by 2 if its last digit is even (0, 2, 4, 6, or 8).
Divisibility rule for which number? 4
A number is divisible by 4 if the number formed by the last two digits is divisible by 4.
Divisibility rule for which number? 8
A number is divisible by 8 if the number formed by the last three digits is divisible by 8.
Divisibility rule for which number? 9
A number is divisible by 9 if the sum of its digits is divisible by 9.
Divisibility rule for which number? 11
A number is divisible by 11 if the difference between the sum of its digits in odd positions and the sum of its digits in even positions is either 0 or divisible by 11.
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