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Divisibility Rules A number is divisible by __ if … 2 – the number ends in an even number (0, 2, 4, 6, 8) 3 – add up the digits and that sum is divisible by 3 4 – the last 2 digits of the number are divisible by 4 5 – the number ends in 0 or 5 6 – the number is divisible by 2 AND 3 9 – add up the digits and that sum is divisible by 9 Multiply by 11: When multiplying 11 to a 2-digit number, separate the digits and put the sum of the digits in the middle: 11 x 34 = 3 __ 4 374 Divisibility Rules A number is divisible by __ if … 2 – the number ends in an even number (0, 2, 4, 6, 8) 3 – add up the digits and that sum is divisible by 3 4 – the last 2 digits of the number are divisible by 4 5 – the number ends in 0 or 5 6 – the number is divisible by 2 AND 3 9 – add up the digits and that sum is divisible by 9 Multiply by 11: When multiplying 11 to a 2-digit number, separate the digits and put the sum of the digits in the middle: 11 x 34 = 3 __ 4 374