Topic 8: Use Strategies and Properties to Add and Subtract
8-1 Addition Properties
8-2 Algebra: Addition Patterns
8-3 Round Whole Numbers
8-4 Mental Math: Addition
8-5
Mental Math: Subtraction
8-6
Estimate Sums
8-7
Estimate Differences
8-8
Relate Addition and Subtraction
8-9
MATH PRACTICES AND PROBLEM SOLVING
8-1 Addition Properties
8-2 Algebra: Addition Patterns
8-3 Round Whole Numbers
8-4 Mental Math: Addition
8-5
Mental Math: Subtraction
8-6
Estimate Sums
8-7
Estimate Differences
8-8
Relate Addition and Subtraction
8-9
MATH PRACTICES AND PROBLEM SOLVING