There are several ways to scan multiple documents at once depending on the type of scanner you have. If you have a flatbed scanner, you may be able to place multiple documents on the scanner bed at the same time and scan them in one batch. Some scanners may also allow you to feed multiple documents into the machine at once.
Alternatively, if you have a multifunction printer with an attached scanner, you may be able to take advantage of its scanning software. Many such machines offer an automatic document feeder option, which allows you to feed a stack of documents into the machine and have them scanned all at once.
Finally, if you have a smartphone or tablet with a built-in camera, there are a number of scanning apps available (both free and paid) that can allow you to quickly scan multiple documents at once, even up to 2000 words.