Place value within 100 - One more one less - Worksheet

The "One More and One Less" worksheet is a practical resource for teaching children the concept of place value within 100. Aimed at enhancing fluency and precision, the worksheet aligns with the National Curriculum objective that requires students to identify one more and one less than a given number, and to count, read, and write numbers up to 100 in numerals. To facilitate learning, the worksheet provides differentiated sheets and teaching slides, supporting a range of abilities from those working towards expectations to those capable of greater depth understanding.

The activities are structured to help children grasp the concept of one more and one less through the use of concrete materials, such as physically adding or removing items, before transitioning to more abstract methods like number tracks or hundred squares. Key questions probe students' understanding of place value and the effects of adding or subtracting one from a given number. For instance, discussions may revolve around which place value column changes or what happens when adding one more to a number with nine ones. The worksheet also includes reasoning and problem-solving sections where students can apply their knowledge in practical scenarios, further solidifying their understanding of place value.