Question

Test for divistibity of number
2, 3, 4, 5, 6, 7, 8, d, 10, 11​

Answer 1

Answer:

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