- Omar G. Monteagudo
1. The purpose is to combine the numbers in the five cards below to get the number shown above. 2. You may add or subtract or multiply or divide the numbers to accomplish the task. 3. The box named "Your combination" is for assessment purposes, so if you are not enrolled in my class, you may leave it empty. 4. Type your combination (remember to use grouping signs!) in the box "Verify" and then hit "Enter" to learn whether you did it right or not.