How do you know the number is divisible by 4?

Answer 1

The foolproof way is to divide 4 into it. If the answer is a whole number, it's divisible by 4. You can also tell by looking at it. If the last two digits are a multiple of 4, like 24 or 80, the whole number is divisible by 4.

Answer 2

If you divide an even number by two and the result is even, the original number is divisible by four. If the number is more than two digits, you only need to focus on the last two since all hundreds and thousands and up are divisible by four. If the number is two digits or less, you need to memorize the 4 times table.

Answer 3

A number is divisible by 4 if the number formed by its last two digits is divisible by 4.

Equivalently, halve the number formed by the last two digits. If the quotient is even, then the original number is divisible by 4.

Answer 4

There are two equivalent ways:

• If the number formed by the last two digits is divisible by 4 then the whole number is.
  
• If you halve the number and the quotient is even.

Answer 5

If the last two digits are divisible by 4, the whole number is divisible by 4.

Answer 6

It means 4 can divided into the number evenly with no remainder.

Answer 7

Multiples of 4, like 4, 8, 12, 16, 20 and so on.

Answer 8

If the last two digits of the number are divisible by 4, the whole number is divisible by 4.

Answer 9

If the last two digits are divisible by 4, the whole number is divisible by 4.

Answer 10

That is correct. This is because 100 is divisible by 4.