Topic: Divisibility Rules
Not finding your answer? Try searching the web for Divisibility Rules
Answers to Common Questions
What are the Divisibility Rules?
The divisibility rules are ways to determine or test if a number is divisible by the numbers 2, 3, 4, 5, 6, 8, 9, and 10. For example, to see if 81 is divisible by 3, you would add the digits 1and 8 to get 9 and see if this sum is divisible... Read More »
Source: http://answers.ask.com/Science/Mathematics/what_are_the_divisibil...
What is the Divisibility Rule for 7?
To find out if a number is divisible by 7, take the last digit, double it, and subtract it from the remaining number. If the answer is divisible by 7, including zero, then the entire number is divisible by 7. Read More »
Source: http://answers.ask.com/Science/Mathematics/what_is_the_divisibili...
How to Apply Divisibility Rules
Third or fourth grade is when most children learn how to tell when a number is divisible by another number. There are simple rules for checking if a number is divisible by 2, 3, 4, 5, 6, 8, 9, 10, 11, or 12. If your child is learning simple... Read More »
Source: http://www.ehow.com/how_4901143_apply-divisibility-rules.html?ref...
Featured Content:
Divisibility Rules
More Common Questions
Answers to Other Common Questions
If the last two digits of a number are divisible by 4, the entire number is divisible by 4. The reason this works is because 100 is a multiple of 4.
Read More »
Source: http://wiki.answers.com/Q/What_is_the_divisibility_rule_for_4
A number that is divisible by 50 ends in 50 or in 00.
Read More »
Source: http://wiki.answers.com/Q/What_is_the_divisibility_rule_of_50
Anything divided by 1 is always itself.
Read More »
Source: http://wiki.answers.com/Q/What_is_the_divisibility_rule_for_1
This works best for very large numbers. The divisibility rule for 32 is one I came up with myself- that is that if you can split the number in half FOUR times, and it is still even- it is a multiple of 32. Example- 64. 64÷2=32 that is the f...
Read More »
Source: http://wiki.answers.com/Q/What_is_the_divisibility_rule_for_32
take twice the last digit from the rest so if i had 357, 7 is the last digit, so 7*2 = 14. so weve taken the last digit and doubled it (35 7 ), the rest is 35 ( 35 7). now we have to take 14 from 35, which is 21. now, 21 is in the 7 times t...
Read More »
Source: http://wiki.answers.com/Q/What_is_the_divisible_rule_for_7
If the rules for 2 and 3 work, the number is divisibale by 5.
Read More »
Source: http://wiki.answers.com/Q/What_is_a_divisibility_rule_for_5
