Have you updated your iPad to iOS 11? If so, you may have noticed that all of the keys now display both a letter as well as either a number or a symbol. For example, the “T” key displays both a T and a 5. If you want to type a T, of course, you simply tap the T key. If you want to type a 5 swipe down on the T. Learning to use this swipe down technique can allow you to type faster on the iPad. To get more detailed instructions on how to use this keyboard, as well as instructions for turning off this feature, check out this MacRumors article.