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5th Grade Interactive Math Skill Builders


Rounding and Estimating

Links verified on 7/29/09
  1. Comparison Estimator - Similar to Estimator but compares two sets of objects.
  2. Computation Castle - a game that requires the utilization of several math skills: mixed numbers/improper fractions, equivalent fractions, metric conversions, exponents, rounding to the nearest thousands and thousandths and place value
  3. Estimate Fractional Distance - watch Grammy carefully and estimate the fractional distance that represents where she jumped over the hedge
  4. Estimation Valley Golf - estimate the distance to the hole using number computation.
  5. Estimating by Rounding - Addition with regrouping - instruction and review, practice, and a quiz
  6. Estimating by Rounding - Subtraction with regrouping - instruction and review, practice, and a quiz
  7. Fraction Game - an applet which allows students to practice working with relationships among fractions and ways of combining fractions - Try a Two-Person version of the game
  8. Half Court Rounding - " Round the number at the bottom of the page. Then, click enter. If you are correct, your character will make the basket. If you are wrong, he will miss. Try to get the highest score possible in 90 seconds."
  9. Round About - estimate by rounding
  10. Rounding Off - Three levels are available in this game from BBC Education
  11. That's Right - estimate measurements in real-world problems using money
  12. Understanding Ratio - interpret a model to form ratios.
  13. 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.

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.




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