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.
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
UP:MA19.2.10
Vocabulary
- Properties of operations
Knowledge
- strategies and methods for symbolically (numerically) recording strategies for fluently solving addition and subtraction problems.
Skills
- 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
- models/strategies can be used to justify their answers.