Answers

2014-10-22T23:15:12+08:00
Simply use the divisibility rules
a number divisible by 2 If the last digit is 2,4,6,8,and 0
a number divisible by 3 is the sum of the digits is divisible by 3
a number divisible by 4 is the last 2 digit is 0
a number divisible by 5 is the last digit either 5 or 0
a number divisible by  6 is when the number is divisible by 2 and 3
a number divisible by 7 is double the last digit and look if its divisible by 7
a number divisible by 8 is the last 3 digits are 0
a number divisible by 9 is when the digits are divisible by 9
a number divisible by 10 is the last digit is 0
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