Estimating

Links verified on 8/6/09

1. Comparison Estimator - compares two sets of objects.
2. Estimation Valley Golf - Quickly estimate the answers to the math problems and play a round of golf!
3. Estimating by Rounding - Addition with regrouping
4. Estimating by Rounding - Subtraction with regrouping
5. Estimating Sum - No hints or clues given
6. Estimator - Practice estimation skills by determining the number of objects, length, or area. (parameters: error tolerance)
7. More or Less Estimator - Similar to Estimator activity but states a quantity and asks the user to estimate whether the set of objects is more or less than the number given.
8. Rounding Off - Three levels are available in this game from BBC Education
9. Spy Guys Interactive - Rounding Numbers - watch the video and respond at various places Lesson 9
10. Weigh the Wangdoodles - Your job is to find the weight of each Wangdoodle using the information provided by the scales. To be successful, you will have to make sure that the weight you assign to each Wangdoodle works on each scale. This activity is a fun but challenging introduction to multiple algebraic equations.