MA19.2.10

Mathematics (2019) Grade(s): 2

MA19.2.10

Fluently add and subtract within 100, using strategies based on place value, properties of operations, and/or the relationship between addition and subtraction.

Unpacked Content

Knowledge

Students know:
  • strategies and methods for symbolically (numerically) recording strategies for fluently solving addition and subtraction problems.

Skills

Students are able to:
  • record strategies for solving addition and subtraction problems.
  • communicate the relationship between models and symbolic (numeric) representations of solutions to addition and subtraction problems.

Understanding

Students understand that:
  • models/strategies can be used to justify their answers.

Vocabulary

  • Properties of operations

Aligned Learning Resources

Properties of Addition StudyJam
Thinkport: Displaying Data With Line Plots
Toothpicks: Patterns in Geometric Shapes
Make It Friendly Strategy
Developing the Make it Friendly Strategy
Making It Friendly Strategy Word Problems
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