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Dividing A 2-digit Number By 40

Dividing A 2-digit Number By 40

Dividing a 2-digit number by 40

  1. Select a 2-digit number.
  2. Multiply it by 5.
  3. Divide the result by 2.
  4. Move the decimal point two places to the left.
   Example:
  1. The 2-digit number chosen to divide by 40 is 21.
  2. Multiply by 5: 5 × 21 = 105.
  3. Divide the result by 2: 105/2 = 52.5.
  4. Move the decimal point two places to the left: 0.525.
  5. So 21 divided by 40 = 0.525.

   See the pattern?

  1. The 2-digit number chosen to divide by 40 is 73.
  2. Multiply by 5: 5 × 73 = 350 + 15 = 365.
  3. Divide the result by 2: 365/2 = 182.5.
  4. Move the decimal point two places to the left: 1.825.
  5. So 73 divided by 40 = 1.825.




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07 Dec, 2019, 00:10:34 AM