The traffic chief of Gridlokia has come up with a brilliant plan to solve the traffic problem on Gridlokia’s roads. He has decided to link cars going in the same direction to make them one big train instead of many separate cars. That way, Gridlokia can control its traffic by monitoring the few trains moving around the planet. Can you help the traffic police create the car trains in Gridlokia? Solve the addition and subtraction problems to find out how many cars can be linked to form each train. The police can then get to work creating the car trains to save the day!