Today we are doing a blog post about addition algorithim because we have finished doing it in our books, addition algorithm is a step by step method used to calculate the sum of two or more numbers, this involves numbers stacked vertically by their place value (one, tens, hundreds etc) with also starting to add from the right and then to the left. This algorithm also includes “carrying” or regrouping the values to the next column. How to do the addition algorithm, stack your numbers vertically so the place values align on the right. Starting from the far right column, add the digits together and write the total below; if the sum is 10 or more, write the last digit at the bottom and “carry” the first digit to the top of the next column to the left. Repeat this process for each column, being careful to include any carried numbers in your new totals, until you’ve finished all columns.