You'll see a grid of number pairs. Your task is to add each pair vertically and type the answer in the box below it, working from left to right across each row. The cursor will automatically advance for quick entry. For best results, take the test on a desktop computer.
After completing a row, move on to the next one. The goal is to finish as many rows as possible, as quickly and accurately as you can, before the test ends. The 3 minute timer begins as soon as you start.