Once upon a time in the land of ancient Israel, there was a young shepherd boy named David. David was tasked with facing the mighty giant, Goliath, in a battle of epic proportions. But before David could step onto the battlefield with his trusty sling, he needed to gather stones to use as ammunition. With each stone representing his determination and courage, David turned to you, his young friend, to help him calculate the total number of stones needed. As you sat down beside David, he handed you a pile of small, smooth stones and asked you to solve addition problems to figure out how many stones he should gather. With each correct answer, a sense of accomplishment shone in David's eyes, knowing that he was getting closer to being fully prepared for the showdown with Goliath.