Place Value

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How many tens are in the number 125? Most students would say there are two tens, but there are actually 12. Incorporate this lesson into your place value unit to help third graders deepen their understanding of the concept.

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CCSS: Designed
Instructional Ideas

  • Create a quick worksheet that allows students to practice finding how many tens are in three- and four- digit numbers
Classroom Considerations

  • Base 10 blocks are necessary for building variations of numbers
Pros

  • Allows learners to represent three-digit numbers in more than one way using base 10 blocks
Cons

  • There are no reproducibles; however, questions can be written on the board or made into a worksheet
Common Core