Write a number. Write it in a different way. Now write it again in a different way. How are kids not in love with this delightful math topic?? So we have to shake things up to give students the practice they need with reading and writing numbers in different forms. I used the sheet above for practice, and as a test a few days later. During practice times, the kids always have to work with each other to make sure everyone in their row understands and can accurately complete the task (I spend time teaching my students how to help without giving answers or negativity) before they can be "done". They took this sheet as a challenge!