Addition and subtraction - Add and subtract 10s - Worksheet

The "Add and Subtract 10s" worksheet is an educational resource aimed at helping Year 6 students enhance their understanding of addition and subtraction with a focus on tens. The National Curriculum objective for this lesson is to add and subtract numbers mentally using concrete objects, pictorial representations, and mental strategies, including a two-digit number and tens. To support the learning process, the worksheet provides differentiated activities and teaching slides, along with practical resources such as Base 10 blocks.

Students are encouraged to use their knowledge of place value to add and subtract multiples of 10 from numbers up to 100. The emphasis is on recognizing the significance of the tens digit and understanding its relationship with the overall value of the number. For instance, in the example provided, 34 plus 20 equals 54. The worksheet includes fluency exercises, reasoning, and problem-solving tasks to challenge the students' understanding. Key vocabulary terms such as 'add', 'subtract', 'digit', 'tens', 'ones', 'pattern', and 'columns' are highlighted to reinforce the learning objectives. Students are also prompted with key questions to facilitate critical thinking about the changes in number columns and to identify patterns within number sentences. The worksheet is structured to cater to different levels of proficiency, from students who are working towards expected standards to those who are ready for greater depth challenges.