Ordering Decimals

We have been learning to order decimals in our Math lessons.  We had a competition where we were put into two groups.  We each had a decimal number written on a piece of paper and then without any talking we had to order ourselves from the smallest decimal number to the largest.  The winning group was the one who could do it in the quickest time.  Mrs Michelle then challenged the class to order themselves from the largest decimal number to the smallest in less than 30 seconds, again without talking.  We tried a couple of times but the quickest we could do it in was 45 seconds.