Addition and Subtraction - Inverse Operations - Worksheet

The worksheet on inverse operations is an educational resource designed to enhance the fluency and precision of Year 6 students in mathematics, focusing on addition and subtraction of whole numbers with more than four digits. It aligns with the National Curriculum objective of using formal written methods for these operations and introduces the concept of using rounding to verify the accuracy of calculations. The lesson encourages students to apply their understanding of inverse operations—recognising that while addition is commutative, subtraction is not—to check their work for accuracy. The resources provided include differentiated worksheets and teaching slides to cater to varying levels of student ability.

Through a series of exercises, the children are tasked with selecting the correct inverse operation for a given calculation and solving word problems that range from one-step to multi-step challenges. The activities aim to deepen their reasoning and problem-solving skills by completing mathematical pyramids and tackling questions about unknown numbers using inverse operations. Additionally, the worksheet includes real-life scenarios, such as calculating high scores in a computer game or measuring swimming distances, to contextualize the mathematical concepts. The worksheet also offers answers to support self-assessment and learning consolidation, ensuring that students can independently verify their understanding of the material covered.