Access Point #: MAFS.2.NBT.2.AP.7b (Archived Access Point)


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Compose ones into tens and/or tens into hundreds in addition situations.

Clarifications:

Essential Understandings

Concrete:

  • Use ones in an addition situation and compose a base ten rod.
  • Use tens in an addition situation and compose a base ten hundred flat.
  • Use base ten hundreds flats in an addition situation.
Representation:
  • Use ones in an addition situation and compose a visual representation of a base ten rod.
  • Use tens in an addition situation and compose a visual representation of base ten hundred flat.
  • Use a visual representation of base ten hundreds flats in an addition situation.

Number: MAFS.2.NBT.2.AP.7b 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

Name Description
MAFS.2.NBT.2.7: Add and subtract within 1000, using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method. Understand that in adding or subtracting three digit numbers, one adds or subtracts hundreds and hundreds, tens and tens, ones and ones; and sometimes it is necessary to compose or decompose tens or hundreds.



Related Courses

Name Description
5012040: Grade Two Mathematics
7712030: Access Mathematics Grade 2
5012005: Foundational Skills in Mathematics K-2