Provide your students with a fun, flexible, and standards-aligned way to build addition fluency with this Addition Within 20 Task Card set. These cards are ideal for centers, small-group work, early finishers, homework practice, or quick formative checks.

Perfect for K-2 — once students have mastered basic sums up to 10, these task cards help them build confidence with larger addends and the mental math strategies that support fluency by 20.

⭐ What’s Included

• 24 addition problems with sums up to 20 (mix of single-digit and teen addends)
• Clear, kid-friendly formatting — easy to print, laminate, and reuse
• Recording Sheet - great for using with clipboards
• Answer Key
• Variety: straightforward sums, “make-10” challenges, and mixed addend configurations to encourage number flexibility
  

📚 Standards Alignment

These task cards line up well with common foundational and state-level standards for addition within 20:

CCSS.MATH.CONTENT.1.OA.C.6(Common Core State Standards) — Add and subtract within 20, demonstrating fluency for addition and subtraction within 10; use strategies such as counting on, making ten, and decomposing to simpler facts. Common Core State Standards Initiative+1

Also supports:

• CCSS.MATH.CONTENT.1.OA.A.1 — Use addition/subtraction within 20 to solve various kinds of word problems (add to, take from, compare, etc.). Common Core State Standards Initiative
  
• CCSS.MATH.CONTENT.1.OA.A.2 — Solve problems that call for addition of three whole numbers whose sum is ≤ 20. Common Core State Standards Initiative+1
  

Grade 1 – Math TEKS (Number and Operations)

• TEKS 1.3.D — Students apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10. Twinkl+2CodeHS+2
  
• TEKS 1.3.E — Students explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences. New Path Worksheets+1
  
• TEKS 1.3.F — Students generate and solve problem situations when given a number sentence involving addition or subtraction of numbers within 20. CodeHS+1
  

These address procedural strategies (mental math, decomposing, making ten), conceptual understanding (models, pictorial representations), and practice/problem solving — which match exactly what your task-cards offer.

Grade 2 – Math TEKS (Number and Operations)

• TEKS 2.4.A — Students recall basic facts to add and subtract within 20 with automaticity (i.e., fluency). Twinkl+1
  

💡 Great For…

• First-grade classrooms consolidating addition skills
• Early finishers needing meaningful practice
• Small-group remediation or fact-fluency drills
• Parents teaching foundational math at home
• Assessing fluency before Thanksgiving/holiday breaks — or anytime throughout the year