Saturday 7 June 2008

Dividing a 2-digit number by 1 1/8

STEPS
  1. Select a 2-digit number.
  2. Multiply by 8.
  3. Divide the result by 9.

Example:

  1. The 2-digit number chosen to divide by 1 1/8 is 42.
  2. Multiply by 8: 8 × 42 = 320 + 16 = 336
  3. Divide by 9: 336/9 = 37 1/3
  4. So 42 divided by 1 1/8 = 37 1/3.

See the pattern?

  1. The 2-digit number chosen to divide by 1 1/8 is 71.
  2. Multiply by 8: 8 × 71 = 568
  3. Divide by 9: 568/9 = 63 1/9
  4. So 71 divided by 1 1/8 = 63 1/9.

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