Use place value understanding and properties of operations to add and subtract.
Number Sense and Operations in Base Ten
Resources cannot be aligned to this standard, browse sub-standards to find lessons.
Demonstrate fluency with addition and subtraction within 100.
Add up to four two-digit numbers.
Add or subtract within 1000, and justify the solution.
Use the relationship between addition and subtraction to solve problems.
Add or subtract mentally 10 or 100 to or from a given number within 1000.
Number & Operations in Base Ten: Use place value understanding and properties of operations to add and subtract.