Sally has 5 cards. Max has 5 cards. The teacher, Mr. Mark, does not allow cards in his class. Mr. Mark took the cards and put them in his office. Now how many cards do Sally and Max have all together?
Now Sally and Max make a plan to sneak into Mr. Mark’s office to retrieve the cards. Once this transaction is completed they will have a combined total of 10 cards stolen back from Mr. Mark.