Addition and Subtraction Within 20 Game

Premium Resource

Grades

Standards

1.OA.C.6
1.OA.B.3
1.OA.A.1

CONTENT PREVIEW

ABOUT ADDITION AND SUBTRACTION WITHIN 20 GAME

This engaging digital math game helps first graders master addition and subtraction within 20, with special focus on developing fluency within 10. Students practice essential math strategies including counting on, making ten, and decomposing numbers through interactive questions.

The game reinforces critical thinking and number sense while keeping young learners engaged through gamified learning. Perfect for classroom practice, homework, or distance learning.

LEARNING OUTCOMES

Master addition and subtraction facts within 20
Develop mental math strategies
Understand number relationships
Build mathematical fluency
Apply various problem-solving techniques

Perfect For:

👩‍🏫 Teachers

• Interactive classroom activities
• Auto-graded game assignments
• Student engagement tools

👨‍👩‍👧‍👦 Parents

• Fun learning at home
• Educational screen time
• Progress tracking

🏠 Homeschoolers

• Interactive curriculum
• Self-paced gaming
• Engaging practice

Game Features:

🎮

Interactive Gameplay

Engaging educational game experience

📊

Auto-Grading

Instant feedback and scoring

📝

Assignable

Perfect for homework and classwork

📄

Printable Components

Additional offline materials

Common Core Standards Covered

1.OA.A.1

Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.1

1.OA.B.3

Apply properties of operations as strategies to add and subtract.2 Examples: If 8 + 3 = 11 is known, then 3 + 8 = 11 is also known. (Commutative property of addition.) To add 2 + 6 + 4, the second two numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12. (Associative property of addition.)

1.OA.C.6

Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).