Access Point #: MAFS.1.NBT.3.AP.5aArchived Access Point

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Using base ten blocks, find 10 more or 10 less of a given two-digit number (e.g., what is 10 more than 20? What is 10 less than 30?).
Clarifications:

Essential Understandings

Concrete:

  • Make a set of base ten blocks that represents a two-digit number.
  • Add or take away another set of base ten blocks that represents 10.
  • Recount the set to get a sum or difference.
Representation:
  • Make a visual representation of base ten blocks that represents a two-digit number.
  • Add or take away a visual representation of another set of base ten blocks that represents 10.
  • Recount the set to get a sum or difference.
  • Understand the following concepts and vocabulary: more, less.
General Information
Number: MAFS.1.NBT.3.AP.5a
Category: Access Points
Cluster: Use place value understanding and properties of operations to add and subtract. (Major Cluster) : 

Clusters should not be sorted from Major to Supporting and then taught in that order. To do so would strip the coherence of the mathematical ideas and miss the opportunity to enhance the major work of the grade with the supporting clusters.

Related Standards

This access point is an alternate version of the following benchmark(s).

Related Courses

This access point is part of these courses.
5012030: Mathematics - Grade One
7712020: Access Mathematics Grade 1
5012005: Foundational Skills in Mathematics K-2

Related Resources

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