Divisibility and remainders

Know the timetable
Number sense

Remainder
Divisible
Multiple

Dividing by	Trick
2	If the number is even, there is no remainder If the number is odd, the remainder is 1
3	Divide the sum of the digits by 3.
4	Divide the last two digits of the number by 4.
5	Find the remainder when the last digit is divided by 5
9	Divide the sum of the digits by 9.
10	The remainder is the last digit of the number.

Describe how you would perform the following operations

Determine if a number is divisible by 3
Determine the remainder when a number is divided by 3
Determine if a number is divisible by 4
Determine the remainder when a number is divided by 5
Determine if a number is divisible by 9
Determine the remainder when a number is divided by 9

What is the remainder when 57 is divided by 3?
Is 57 divisble by 3?
What is the remainder when 134 is divided by 4?
Is 134 divisble by 4?
What is the remainder when _____ is divided by _____?
Is _____ divisble by _____?

What is the remainder when _____ is divided by _____?
Is _____ divisble by _____?

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