Studio Edition v2 · 6.NS.B.2 · Multi-digit division using the standard algorithm
Three underwater systems are failing. Steer your submarine into neutral sonar drones to select an answer. All drones look the same until you commit. Wrong collisions damage the hull and trigger smarter support: first a conceptual hint, then a procedural hint, then a worked-example rescue. Finish all zones to unlock the reactor core.
Each division prompt spawns four neutral sonar drones in the water. Move into a drone to commit to that answer. Before collision, none of them reveal whether they are correct. On mistakes, the game keeps you on the same problem and adds support. After the third mistake, you complete the final step of a worked example before returning to the mission.
Complete the last step to recalibrate the system, then the mission continues.
The submarine systems are stable. Division command restored.