🔢 Grade 1 • ➖ Subtraction within 20
Subtraction within 20
Practice subtracting within 20 using pictures, counting back, number lines, and comparison stories.
📋 What You'll Learn
- 1 Subtract numbers within 20 using objects and number lines
- 2 Use counting back and finding the difference to solve problems
- 3 Read and solve simple subtraction story problems
- 4 Explain what the difference means in a subtraction equation
🗺️ Learning Path
📖
Lesson
Read the full step-by-step lesson with examples and key vocabulary
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Subtraction within 20 Worksheet
easy • 15 minutes • 10 problems
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Count Back and Fact Families Worksheet
easy • 15 minutes • 10 problems
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Subtraction Stories and Comparison Worksheet
medium • 18 minutes • 10 problems
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Practice Quiz
Test your knowledge with an interactive quiz and get instant feedback
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Teaching Guide
For parents & teachers — strategies, activities, and differentiation tips
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