Study Jams! Estimate Sums & Differences of Whole Numbers

This Study Jams! Estimate Sums & Differences of Whole Numbers interactive also includes:

Estimating is an essential skill used in everyday life. This presentation explains how to apply prior knowledge about rounding numbers to estimating sums and differences. Example problems and assessment include large numbers, making this most appropriate for fourth grade learners.The procedure for front-end estimation is included, but decide for yourself whether this is a method you want your class to learn.

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CCSS: Adaptable
Pros

  • Includes practice estimating a variety sums and differences into the ten thousands
  • Provides real-life contexts for estimation
Cons

  • Front-end estimation procedure inconsistent with assessment answers
Common Core