Round numbers up to 100 to the nearest 10 to stop and start numbered cars to keep them from crashing at the busy intersection. Rounding numbers, easy. Rounding numbers to keep cars from crashing not so easy. See how long you can keep the streets safe.
Click the number buttons numbered 10, 20, 30, 40, 50, 60, 70, 80, 90, and 100 to stop and start cars that round to those numbers. The game ends when any of the cars crash. Be sure and watch out for faster cars as they can run into the back of other cars!
