Formula Suggestion Sheet

"Around the World in Eighty Days"

Suggestions for developing your math formulas - see

• You are comparing the land/sea distances to air distance. Make sure that your difference formula and percent formula reflects this.
• In mathematics, subtraction is not closed over the set of positive numbers. Your differences and percents can be positive or negative.
• Remember, that a percent means per hundred. You are comparing a part to a whole and putting it into percent form.
• All formulas entered in the computer spreadsheet must be agreed upon by the group.
• Make sure that your first few calculations are reasonable. Rethink and adjust your formulas or your spreadsheet format if necessary.
• If you have any questions about mathematical formulas for percent of increase or decrease
  • check your class math notes
  • check your math textbook
  • check with your peer group
  • check with the math lab support person
  • check with the teacher

• Check the posted group/individual assignment lists in the math lab or English class
• Check the posted math lab and computer lab schedules