Division<br />Patterns and Estimating Quotients<br />
Arrays<br />
Division Math Vocabulary<br />Compatible Numbers<br />Numbers in a problem that are easy to work with mentally.<br />Divis...
Dividing Mentally!<br />600  ÷  6 =<br />100<br />
Dividing Mentally!<br />270  ÷  90 =<br />3<br />
Dividing Mentally!<br />25,000 ÷  500 =<br />50<br />
Draw a Picture to Solve<br />92  ÷  4 =<br />
Draw a Picture to Solve<br />78  ÷  6 =<br />
We can Round in Division Too!!!<br />
The Puppy Problem<br />
Find a Compatible Dividend<br />Estimate  156  ÷  3<br />  ÷  3<br />150  ÷  3 <br />     =  <br />      50<br />We change...
Find a Compatible Divisor<br />Estimate  3,200  ÷  90<br />3,200  ÷  90<br />3,200  ÷  80<br />=<br />40<br />We change 90...
Bring to the Nearest Ten<br />Estimate  228  ÷  43<br />228 ÷  43<br />228 ÷ 40<br />240÷ 40<br />=<br />6<br />We change ...
Three Ways to Round<br />45 ÷  6 =    		       45 ÷  6 = 		45 ÷  6 = <br />
Real-World Problems<br />Exact Answer:<br />12 oz.:  __________<br />20 oz.:  __________<br />Estimated Answer:<br />12 oz...
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Division, patterns and estimating quotients 10 25-10

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Division, patterns and estimating quotients 10 25-10

  1. 1. Division<br />Patterns and Estimating Quotients<br />
  2. 2. Arrays<br />
  3. 3. Division Math Vocabulary<br />Compatible Numbers<br />Numbers in a problem that are easy to work with mentally.<br />Division<br />An operation that is the opposite of multiplication. It breaks a number up into even groups.<br />Dividend<br />A number that is being divided<br />Divisor<br />The number by which the dividend is being divided<br />Quotient<br />The answer or result of a division problem<br />
  4. 4. Dividing Mentally!<br />600 ÷ 6 =<br />100<br />
  5. 5. Dividing Mentally!<br />270 ÷ 90 =<br />3<br />
  6. 6. Dividing Mentally!<br />25,000 ÷ 500 =<br />50<br />
  7. 7. Draw a Picture to Solve<br />92 ÷ 4 =<br />
  8. 8. Draw a Picture to Solve<br />78 ÷ 6 =<br />
  9. 9. We can Round in Division Too!!!<br />
  10. 10. The Puppy Problem<br />
  11. 11. Find a Compatible Dividend<br />Estimate 156 ÷ 3<br /> ÷ 3<br />150 ÷ 3 <br /> = <br /> 50<br />We change 156 to 150 because <br />150 and 3 are compatible <br />numbers<br />
  12. 12. Find a Compatible Divisor<br />Estimate 3,200 ÷ 90<br />3,200 ÷ 90<br />3,200 ÷ 80<br />=<br />40<br />We change 90 to 80 because 32 and 8 are compatible numbers.<br />
  13. 13. Bring to the Nearest Ten<br />Estimate 228 ÷ 43<br />228 ÷ 43<br />228 ÷ 40<br />240÷ 40<br />=<br />6<br />We change the divisor to the nearest 10.<br />We change the dividend to a number that is compatible with 4. Look, It’s easy to divide 24 by 4.<br />
  14. 14. Three Ways to Round<br />45 ÷ 6 = 45 ÷ 6 = 45 ÷ 6 = <br />
  15. 15.
  16. 16. Real-World Problems<br />Exact Answer:<br />12 oz.: __________<br />20 oz.: __________<br />Estimated Answer:<br />12 oz.: __________<br />20 oz.: __________<br />

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