Addition and subtraction - Add two-digit and one-digit numbers - Worksheet

The worksheet titled "Add two-digit and one-digit numbers" is an educational resource aimed at enhancing the arithmetic skills of learners, specifically in adding two-digit numbers to one-digit numbers. To facilitate this learning, differentiated worksheets and teaching slides are provided as resources. The key vocabulary for this lesson includes terms such as 'adding', 'crossing 10', 'partition', 'one digit', 'two digit', 'number bonds', 'number line', and 'base 10'. These terms are crucial for understanding the concepts being taught, and students are expected to be familiar with them.

Before beginning the exercises, it is essential for students to have a firm grasp of place value, particularly the concept that ten ones are equivalent to one ten. This foundational knowledge is necessary for effectively partitioning two-digit numbers and adding them correctly. The lesson also emphasises the need for students to distinguish between one-digit and two-digit numbers and to align them in columns accurately. Mastery of number bonds is also highlighted as a key factor in progressing with the number line method. Students will start with a completed number line and gradually move on to creating their own number lines to solve the calculations. The worksheet also includes reasoning and problem-solving sections, where students will determine the validity of statements and work out number sentences correctly using digit cards.