How would you calculate your average speed if you walked from your house to your house to your friends house two blocks away?

To calculate your average speed, you would first determine the total distance of your walk to your friend's house and back, which is the distance of two blocks there and two blocks back, totaling four blocks. Next, you would measure the total time it took for the round trip. Finally, you would divide the total distance (four blocks) by the total time taken to find your average speed, typically expressed in blocks per minute or another suitable unit.