Race for the Rocket

For maths today Mrs Linda and I played a game called race for the rocket. We each had either 12 martians or 12 Astronauts and a pile of more/less cards upside down. We had to take one more or less card and then add or take away an astronaut or a martian, the first person to get to the top of the rocket is the winner. I was the Astronaut and I won the game