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When you move the decimal point how can you know whether you are increasing or decreasing the number?
Simply look at the number!
LCM of 3 2 7?
The lowest common multiple (lowest number which goes in all three) of 3,2 and 7 is 42. We know that 3, 2 and 7 cannot be divided by one another to give an integer, so we must multiply them to get the LCM.
What is number between 40 and 50 and has a multiple of 86?
Of any integers, start with dividing by 1, 2, 3. You know /1=86. /2 is 43. That's your answer. Any number after this gives you a smaller number than 40
One sixth of a number is twelve What is the number?
Designate the unknown number by n. If n/6 = 12, n = 12 X 6 = 72. Another answer: You must be an American. In any other country you would know your 12 times tables and know the answer in your head.
Which number is a factor of 21 but not a multiple of 7?
3 is a factor of 21 and it is not a multiple of 7.
How do you know whether a is a multiple of another?
Divide the other into a. If the answer is an integer, a is a multiple of the other.
How can you know if a number is a multiple of another number?
When it is a factor of that particular number.
How do you know whether you can trust Wikipedia or another online resource?
By comparing multiple sources and by looking at the references.
How do you know whenether a number is a multiple of another number?
Divide the smaller number into the larger number. If it comes out evenly with no remainder, the larger number is a multiple of the smaller number. All even numbers are multiples of two.
How do we know if a number is divisible by 3?
If the sum of the digits is a multiple of three, the whole number is a multiple of three.
How do you know if a number is a factor of 9?
I think you might mean "multiple." If the sum of a number's digits is a multiple of 9, the original number is as well. If you want to know how you know if a number is a factor of 9, memorize the numbers 1, 3 and 9.
How do you now if a number is a multiple of 9?
You know that it is a multiple of 9 if it divides into 9 equally.
How do you know that 1001 is a multiple of 7?
To calculate whether a number is a multiple of 7, double the last digit and subtract it away from the rest of the number. If this following number divides by 7 without a remainder, then the number is divisible by 7. Continue the process if necessary. In this instance, 100 - (1 x 2) = 98/7 = 14. 1 - (4 x 2) = -7/7 = -1 Therefore, 1001 is a multiple of 7.
Who can you easily know if it is prime?
Do you mean, "How can you easily know whether or not a number is prime?"
Do high hcg hormones indicate a multiple pregnancy?
No. The best way for you to know whether you have a multiple pregnancy is by a clinical examination (ie feeling for multiple babies) or, better still, an ultrasound scan.
What does by mean in math?
You normally multiply a number by another number
How do you know if a number is a multiple of 5 or 10?
If it has a 0 or a 5 at the end of it.
