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Divisibility tricks

second quarter

QuestionAnswer
2 If the number is even.
3 If the sum of the digits of the number are divisible by 3.
4 last two digits of the number are 00 or last two digits are divisible by four.
5 if the number ends in 0 or 5.
6 if the number is divisible by 2 and 3.
7 take off the las digit of the number then double the last digit then subtract it rom the number. After one time do it again with the other number.
8 if the last three digits are 000 or divisible by 8.
9 The sum of the digits in the number is divisible by 9.
10 if the number ends in a 0.
11 Take off the last digit od the number then subtract it from the number. And see whether that number is divisible by 11.
12 if the number is divisible by 4 and 3
Created by: phoebsta
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