12 Maths Tricks for Quick Calculations | Best Maths Tricks ...
If the last digit is 0 or 5, it is divisible by 5. If a number is divisible by 2 and 3, then it is divisible by 6, since 6 is the product of 2 and 3. If the number is divisible by 8, the last three digits of the numbers are divisible by 8. If a number is divisible by 9, the sum of the digits is divided by 9.
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