Access Point #: MAFS.4.NBT.1.AP.2c (Archived Access Point)

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Understand the role of commas to read and write numerals between 1,000 and 1,000,000.


Essential Understandings


  • Separate a number into place value periods using commas.
  • In place value, a period is each group of three digits separated by commas.
  • Identify and label thousands and millions periods in numbers up to 1,000,000.
  • In place value, a period is each group of three digits separated by commas.
  • Identify proper comma usage in a multi-digit number up to 1,000,000.

Number: MAFS.4.NBT.1.AP.2c Category: Access Points
Cluster: Generalize place value understanding for multi-digit whole numbers. (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.4.NBT.1.2: Read and write multi-digit whole numbers using base-ten numerals, number names, and expanded form. Compare two multi-digit numbers based on meanings of the digits in each place, using >, =, and < symbols to record the results of comparisons.

Related Courses

Name Description
5012060: Mathematics - Grade Four
7712050: Access Mathematics Grade 4
5012055: Grade 3 Accelerated Mathematics
5012015: Foundational Skills in Mathematics 3-5

Related Resources

Element Cards

Name Description
4th Grade Math Element Cards:

Element Cards are available to assist in planning for instruction. They are designed to promote understanding of how students move toward the academic standards. Element Cards contain one or more access points, essential understandings, suggested instructional strategies and suggested supports.