1. Use the rules of divisibility to check which of the following numbers are multiples of (are divisible by) 2,3,4,5,6, 8, 9 and 10 a) 552 b) 315 c) 620 d) 426
a) 552 is a multiple of 2, 3, 4, 6 and 8 b) 315 is a multiple of 3, 5 and 9 c) 620 is a multiple of 2, 4, 5 and 10 d) 426 is a multiple of 2 and 3
Rules include: Even numbers are divisible by 2. If the sum of a number’s digits are divisible by 3, the number is divisible by 3. Any number ending in 5 or 0 is divisible by 5. Any number divisible by both 2 and 3 is divisible by 6. If the sum of a number’s digits are divisible by 9, the number is divisible by 9. If a number ends in 0, it is divisible by 10.
