Adds Single-Digit Numbers
Child adds two single-digit numbers.
Ages 48–72 months
Why it matters
Combining small quantities is the foundation of arithmetic and builds fluency with number relationships.
What mastery looks like
- Finds the sum of two single-digit numbers, with manipulatives if needed.
How to observe it
- Given two small groups of objects, does the child count them together to find the total?
Accessibility
- Provide counters or a number line for children who are not yet adding mentally.
Activities
- Add the Dots
- Single-Digit Addition Worksheet
Worksheets
Learn first
Evidence
- Head Start Early Learning Outcomes Framework (ELOF) — U.S. Office of Head Start · 2015 · U.S. Department of Health and Human Services
Early Atlas