Question

write the divisibility rule of 2,3,4,5,6,7,8,9 and 10,11​

Answer 1

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Divisibility Test for 2: The last digit is 0, 2, 4, 6, or 8.

Divisibility Test for 3: The sum of the digits is divisible by 3.

Divisibility Test for 5: The last digit is 0 or 5

Divisibility Test for 7: Cross off last digit, double it and subtract. Repeat if you want. If new number is divisible by 7, the original number is divisible by 7

Divisibility Test for 9: If the sum of digit is divisible by 9, so the no. is divisible by 9.

Divisibility Test for 11: For a 3-digit number, sum of the outside digits minus the middle digit must be 0 or 11

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Answer 2

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