Addition and subtraction within 20 - Add ones using number bonds - Worksheet

The worksheet provided is a comprehensive tool for teaching children the concept of addition and subtraction within 20 by focusing on adding ones using number bonds. The National Curriculum objective for this lesson is to enable students to add and subtract one-digit and two-digit numbers to 20, including zero. To facilitate learning, the worksheet offers differentiated sheets and teaching slides. The vocabulary for the lesson includes terms such as 'addition' and 'number bonds', which are crucial for understanding the tasks.

Students are encouraged to explore addition by applying their knowledge of number bonds, recognizing the ones in two-digit numbers, and understanding the part-whole model. The worksheet includes exercises where children complete number sentences by adding ones to a ten, for instance, turning 3 + 4 = 7 into 13 + 4 = 17. A number line is provided for additional support, and children are tasked with filling out answers to various addition problems. As they progress, students move from guided examples to completing addition calculations independently, with the goal of achieving fluency and precision in their mathematical reasoning and problem-solving skills.