Dividing decimals part 1

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Dividing decimals part 1

  1. 1. DividingDecimalsLesson 1-9
  2. 2. Remember the parts of a division problem: quotient 9 5 45 dividenddivisor
  3. 3. Dividing a Decimal by a Whole Number• Place the decimal point in the quotient directly above the decimal point in the dividend.• Divide as you normally would (DMSCB)
  4. 4. Example 2. 5 D5 12.5 M 10 S 25 25 C 0 B
  5. 5. 11. 28 Example 29 101.52 9 11 9 25 18 72 72
  6. 6. Dividing a Decimal by a Decimal• Move the decimal point in the divisor to the right, until you get to the end of the digits.• Count how many places you moved that decimal.• Move the decimal point in the dividend the same number of places to the right that you moved the decimal point in the divisor.
  7. 7. Example 0.3 6.72one space 03 67.2 New problem
  8. 8. 22. 4 D3 67.2 M 6 S 07 6 C 12 B 12
  9. 9. Example 23.2 2.24 .7 32 x5 32 x8 32 22.4 160 256 22 4 32 0 x7 224
  10. 10. Example 3 0.38 13.3The decimal must be When we move this one 2moved 2 spaces to the spaces, we find that weright. need to add a space. What will we fill it with? Answer: Fill it in with a 0. 13.3 becomes 1330 SO, our problem becomes 038 into 1330. 038 is the same as 38.
  11. 11. 35 38 3838 1330 x5 x4 114 190 152 38 190 x3 190 114 0
  12. 12. Example 42.48 1.3392248 133.92
  13. 13. 248 248 x5 x6 .5 4 1240 1488248 133.92 124 0 248 x4 9 92 992 9 92 0

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