Once upon a time, in a cozy little town by the ocean, there were two best friends named Alex and Ethan. These boys were always full of energy and loved to learn new things. Their favorite heroes were the brave coast guards who protected their town and its beautiful beach. Every day after school, Alex and Ethan would rush to the beach, ready to play. They would pretend they were coast guards, with their toy boats and binoculars, keeping a lookout for any signs of danger. They loved imagining they were on daring rescue missions, saving stranded sea creatures or helping lost sailors find their way back home.

One sunny afternoon, as the boys were playing near the shore, a seagull flew overhead, holding something shiny in its beak. Alex and Ethan were eager to find out what it was, so they followed the bird as it landed on a big rock. Much to their surprise, the shiny object was a treasure map! The boys' eyes lit up with excitement. They knew this could be the adventure of a lifetime. Together, they studied the map, trying to figure out where the treasure might be hidden.

The map showed pictures of beautiful seashells, starfish, and dolphins, leading the boys on a journey around their favorite places along the coast. They quickly realized that they needed to solve addition problems to unlock the clues to the treasure's location. As Alex and Ethan looked at the first picture, they saw three seashells. They knew they had to find three more shells to solve the problem. So, hand in hand, they searched the beach, counting the seashells they found. One, two, three... and then four, five, six! They rejoiced as they found the last three shells, carefully making sure they were all counted.

With the first clue solved, Alex and Ethan moved on to the second picture of five sparkling starfish. They needed to find five more of them, so they started searching the rock pools. With their sharp eyes, they spotted the starfish, one, two, three... and then four, five, six, seven, eight! They were incredibly proud of themselves for solving the addition problem correctly. On and on they went, finding dolphins, crabs, and even beautiful seahorses, adding up the numbers until they reached the final clue on the map. Finally, after what felt like a big adventure, they stood before a treasure chest buried in the sand.

With excitement bubbling in their hearts, they carefully dug up the chest. Inside, they found a shiny gold medal that shone brighter than the sun itself. It was a medal given to the bravest coast guards in recognition of their friendship and courage. The boys felt so proud of themselves, but even more, they realized that their friendship had grown stronger throughout their adventure. They knew that working together was not only fun but also the key to achieving great things.

From that day on, Alex and Ethan continued to play their favorite coast guard games, always solving addition problems to protect their treasure, which was their friendship. They understood that friendship, like addition, was not just about counting the numbers, but about cherishing each other and adding joy and happiness to their lives. And so, they lived happily ever after, making new memories and solving endless adventures as true friends and brave coast guards of their little town. The end.