Curriculum placement
Grade 2. This describes the skill, not a learner estimate.
Adding several two-digit numbers
Combine several two-digit addends
Problem types
- Add several groups
Builds on
- Adding within 100
- Adding three numbers · Earlier idea
Adding three numbers in any grouping extends to adding several numbers in convenient groups.
Leads to
- Perimeter of a polygon · See it applied
The perimeter of a polygon with many sides adds several lengths.
- Adding and subtracting whole numbers · Extend the idea
Adding several numbers by place value is the same regrouping used to add larger multidigit numbers.
- Mean and median · See it applied
The mean of a dot plot adds several values before dividing.
Related skills
- Coins and bills · Shared foundations
- Subtracting within 100 · Shared foundations
Open the interactive map to explore lessons and skill connections.