Place Value within 50 - One more one less - Worksheet

The "One More and One Less" worksheet is a practical resource designed to help Year 6 students master the concept of identifying the number that is one more or one less than a given number within the range of 0 to 50. This learning activity aligns with the National Curriculum objective and employs various resources such as tens frames, base 10 blocks, and teaching slides to facilitate understanding. The vocabulary central to this lesson includes terms like count, numbers 0 – 50, grid, 2-digit numbers, tens, ones, more than, and less than. Through hands-on activities, children will use these terms to explore numerical relationships and improve their fluency and precision in number counting.

The worksheet presents a series of exercises where students are asked to use counters or cubes to represent numbers and then determine one more or one less than the given number. They are encouraged to use a number grid for support, which has some numbers pre-filled to guide them. As they progress, the tasks become more challenging, requiring students to fill in missing numbers on the grid and complete sentences that involve writing numbers within 20 in words. The activities are designed to cater to different levels of understanding, from those who are working towards the expected level to those who are ready for greater depth challenges. Key questions prompt students to think about the process of counting forwards or backwards and which digits change, while reasoning and problem-solving exercises require them to deduce original numbers from given clues.