Addition Subtraction - Subtracting Within 20

About This Worksheet

This worksheet provides valuable practice in developing foundational subtraction skills, which are crucial for future mathematical understanding. By working through these problems, children solidify their understanding of number bonds and the relationship between numbers within 20. The use of concrete objects, pictorial representations, and number lines helps to make the abstract concept of subtraction more concrete and accessible. Solving word problems encourages children to apply their subtraction skills in real-world contexts, developing their problem-solving abilities and mathematical reasoning. Furthermore, the worksheet promotes independence and confidence in tackling mathematical challenges. Mastering subtraction within 20 lays the groundwork for more complex mathematical operations later on, such as subtraction with larger numbers, borrowing, and negative numbers. It also supports the development of estimation skills and mental math strategies. The ability to confidently subtract within 20 is essential for everyday life, from calculating change to sharing objects equally. This worksheet aims to provide a solid foundation for these essential mathematical skills.

💡 How to Use This Worksheet

This worksheet is designed to reinforce subtraction skills within 20 for Year 1 students. Begin by reviewing the concept of subtraction as 'taking away' or finding the difference. Encourage students to use concrete materials like counters or cubes to represent the numbers in each problem. Alternatively, guide them to use the number line provided to count backwards. For word problems, encourage students to read carefully and identify the key information needed to solve the problem. Model the first question or two as a class to ensure understanding before allowing students to work independently. Provide support and scaffolding as needed, especially for students who are struggling with the concept.

❓ Frequently Asked Questions