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Just look at the last digit. If it's even, then the number is even. If it's odd, then the number is odd.

(The other digits tell you how many tens, hundreds, etc. Ten, or a multiple of ten - like seventy or eighty - is always even. Same goes for hundreds, thousands, etc.)

Q: How can you tell if a number is even without dividing by 2?

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To determine if a number is even or odd, you can check if the number is divisible by 2. If the number is divisible by 2 without leaving a remainder, then it is even. If the number is not divisible by 2 or leaves a remainder when divided by 2, then it is odd.

One quick way to tell whether or not a cell is dividing is to look at the number of chromosomes. If the number is doubled then it is dividing.

No remainder because the digits of 45549 finally add up to 9

You can look at the last digit. If the lest digit of a whole number is even, the number is even.

You can tell it will be even when the number you are multiplying has a 2 4 6 8. You can tell it will be odd when the number you are multiplying has a 1 3 5 7.

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To determine if a number is even or odd, you can check if the number is divisible by 2. If the number is divisible by 2 without leaving a remainder, then it is even. If the number is not divisible by 2 or leaves a remainder when divided by 2, then it is odd.

There is not an easy way without some division. The simplest is to check the divisibility of the number formed by the last three digits.

One quick way to tell whether or not a cell is dividing is to look at the number of chromosomes. If the number is doubled then it is dividing.

just dividing it

If the denominator has ANY prime factor other than 2 or 5, then the decimal is repeating.

506

No, because a quotient requires two numbers. Given the two numbers it is quite easy to work out the number of digits in the quotient.

If you can cut it in half three times and get a whole number each time, it's divisible by 8.

The 'quotient' is the result of dividing one number by another number. That may sound complicated, but one thing it does tell you right away is that you can't have a quotient without two numbers. Unfortunately, 10 is only one number.

1. Sum of digits (12) is divisible by 3, so number is divisible by 3 2. It's an even number so it's divisible by 2 3. If it's divisible by both 3 and 2 then it's divisible by 3 x 2, ie 6.

No remainder because the digits of 45549 finally add up to 9

You can look at the last digit. If the lest digit of a whole number is even, the number is even.