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Divisibility rules

TermDefinition
2 The last digit is even
3 If you add up all the digits and the answer is divisible by three, then the whole number is divisible by three
4 The last two digits are divisible by four
5 The number ends in five or zero
6 The number is divisible by three and two
7 If you double the last digit and minus it from the rest of the digits and the answer is seven or zero, then the whole number is divisible by seven
8 The last three digits are divisible by three
9 If you add up all the digits and the answer is divisible by nine, then the whole number is divisible by nine
10 The number ends in zero
11 If you add up every first number and every second number and minus it from each other and the answer is zero or eleven, then the number is divisible by eleven
12 The number is divisible by three and four
Created by: Gemma Gilowey