Column Addition 2 - PowerPoint

In the Year 3 mathematics curriculum, students are introduced to the concept of column addition, a fundamental arithmetic skill. The teaching resource provides a step-by-step guide to adding numbers using the column method, including instances where exchanging between columns is necessary. Initially, pupils are reminded of the column addition process without the need for exchange. They learn to place each digit in the appropriate place value column, ensuring they understand the value of each digit within the sum. For example, in the sum 516 + 472, the numbers 5 and 4 represent 500 and 400, respectively, when positioned in the hundreds column.

The resource then presents a series of exercises with increasingly complex sums that require exchanging. Students begin by adding the digits in the ones column and, if the sum is 10 or more, they carry over to the tens column. This process is repeated for the tens column, and if necessary, carried over to the hundreds column. The examples provided, such as 435 + 129 = 564, illustrate the method clearly. The worksheet also includes a set of sums for independent practice, reinforcing the concept through repetition and variation. The resource is designed to build confidence in performing column addition and to develop a solid understanding of place value and the exchange process in addition.