Round to the Nearest Hundred Using a Number Line

Using a number line to round to the nearest hundred is a snap after watching this video. This sixth of eight videos walks through a review explanation of benchmark numbers, rounding, and midpoints. It then gives several examples of how to know when to round up or down by using benchmark numbers and midpoints as a guide.

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CCSS: Designed
Classroom Considerations

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  • The common mistake of counting by increments of one at all times is addressed, along with the mistake of rounding in the wrong direction
  • Clear enunciation and visuals make the concepts easy to follow along with

  • It might be confusing for learners. They are rounding to the nearest hundred, but the increments are in groups of ten; take time out to have a discussion about this as a class or small group
Common Core