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Divisibility Rules<br />
If the ones digit is divisible by 2, then 2 is a factor of the number.<br />Examples:<br />4<br />18<br />24<br />112<br /...
If the sum of the number’s digits is divisible by 3, then 3 is a factor of the number.<br />Examples:<br />6<br />18<br />...
If the number ends in a 0 or a 5, then 5 is a factor of the number.<br />Examples:<br />10<br />85<br />25<br />140<br />7...
If the sum of the digits is divisible by 9, then 9 is a factor of the number.<br />Examples:<br />18<br />81<br />27<br />...
If the number ends in 0, then 10 is a factor of the number.<br />Examples:<br />20<br />100<br />30<br />160<br />5860<br />
How about these Numbers?<br />
7456<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
369<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
33450<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
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Division, divisibility rules 11 3-10

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Transcript of "Division, divisibility rules 11 3-10"

  1. 1. Divisibility Rules<br />
  2. 2. If the ones digit is divisible by 2, then 2 is a factor of the number.<br />Examples:<br />4<br />18<br />24<br />112<br />1806<br />
  3. 3. If the sum of the number’s digits is divisible by 3, then 3 is a factor of the number.<br />Examples:<br />6<br />18<br />24<br />132<br />9612<br />
  4. 4. If the number ends in a 0 or a 5, then 5 is a factor of the number.<br />Examples:<br />10<br />85<br />25<br />140<br />7625<br />
  5. 5. If the sum of the digits is divisible by 9, then 9 is a factor of the number.<br />Examples:<br />18<br />81<br />27<br />144<br />4545<br />
  6. 6. If the number ends in 0, then 10 is a factor of the number.<br />Examples:<br />20<br />100<br />30<br />160<br />5860<br />
  7. 7.
  8. 8. How about these Numbers?<br />
  9. 9. 7456<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
  10. 10. 369<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
  11. 11. 33450<br />Is this number divisible by:<br />2<br />3<br />9<br />5<br />10<br />
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