Max Maths, Year 2, Learn together, Addition within 100 with regrouping (3)

In Max Maths for Year 2, students are introduced to an effective strategy for addition within 100, which involves breaking up numbers into tens and ones to simplify the process. This method is particularly useful when regrouping is necessary. The first step in this approach is to separate the numbers into their tens and ones components. For example, when adding 45 and 28, we write it as 40 (tens) plus 5 (ones) and 20 (tens) plus 8 (ones), making it easier to see and manage the separate parts of each number.

The second step focuses on adding the ones place values together first. If the sum of the ones exceeds 9, we regroup them into tens and ones. Taking our example, we add 5 and 8 to get 13, which we then break down into 10 and 3. This step ensures that we effectively manage any regrouping needed without confusion. Finally, we combine all the tens and then add the remaining ones to find the total sum. In our case, we add 40, 20, and the regrouped 10 to get 70, and then add the 3 remaining ones to reach the final answer of 73. This structured approach helps students to understand the concept of regrouping and to perform addition with greater confidence and accuracy.