Round each term that will be added Add the rounded numbers If both are rounded down or both rounded up see if the amount of rounding is more than 50. If it is, add or subtract 100 to the estimate. If one number is rounded down and the other is rounded up a closer estimate will not be produced by this method. Checking to see if you have enough money to buy what you want. You have correct and incorrect.
Extra time is awarded for each correct answer.
Play longer by getting more correct. Copyright 2000 J.Banfill. All Rights Reserved.