# Access Point #: MAFS.3.NBT.1.AP.2aArchived Access Point

Use the relationships between addition and subtraction to solve problems.
Clarifications:

#### Essential Understandings

Concrete:

• Using manipulatives join (addition) and separate (subtraction) sets to show the inverse relationship between addition and subtraction.
Representation:
• Understand the following concepts, symbols, and vocabulary for: add, subtract, sum, difference, total.
• Compare related equations (e.g., 2 + 3 = 5 and 5 − 3 = 2).
General Information
Number: MAFS.3.NBT.1.AP.2a
Category: Access Points
Cluster: Use place value understanding and properties of operations to perform multi-digit arithmetic. (Additional 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.
5012015: Foundational Skills in Mathematics 3-5

## Related Resources

Vetted resources educators can use to teach the concepts and skills in this access point.