Pupils experience math functions as they practice their addition and subtraction skills, and fill in each table based on a given rule. There are two columns in each of the four tables. The in column is already completed and the out column only has one example filled in. Once learners apply the function to all the numbers, they can match it to a number sequence on the right. However, this only requires them to complete one number (to find the correct sequence). Cover up the answers until scholars are finished.