Maths

I am learning  place value. You have to pass the rugby ball to one of the person in your team. If he catch the ball then a question will pop up and you will have to answer it. This is how I did it :
7,134 in which place is the four. four is at the end if it is at the end any number that is at the end is ones. The answer was ones. This was really easy for me because I have already learned about place value. I would really want to learn about making decimals into percentages next.