Addition and subtraction - Subtract with two-digit numbers not crossing 10 - Worksheet

This worksheet is designed to help Year 6 students master subtraction with two-digit numbers without crossing the ten boundary. It aligns with the National Curriculum objective that requires students to solve problems using subtraction, including the use of concrete objects, pictorial representations, and applying their growing knowledge of mental and written methods. The resources provided for this lesson include differentiated worksheets, teaching slides, and Base 10 blocks to facilitate hands-on learning. The key vocabulary terms such as addition, subtraction, larger, smaller, tens, ones, value, and column are crucial for understanding the concepts taught in this lesson.

The exercises on the worksheet are structured to guide students through the process of subtracting two-digit numbers in a step-by-step manner. Initially, children are provided with images of the Base 10 blocks and full examples to help them understand the subtraction process without crossing tens. As they progress, they are required to identify the Base 10 blocks needed for the calculations and are given partial methods to aid their learning. For those at greater depth, the worksheet presents challenges with missing parts of the method, encouraging them to think critically about the calculations. The worksheet also includes reasoning and problem-solving tasks to further develop the students' subtraction skills. By partitioning numbers, subtracting ones and tens, and then recombining the partitioned numbers, students practice fluency and precision in subtraction.