Home Blockchain Lesson #1: How to use Averages to Buy and Sell. Blockchain Lesson #1: How to use Averages to Buy and Sell. By Chris Butler - April 3, 2020 1475 0 FacebookTwitterPinterestWhatsApp source RELATED ARTICLESMORE FROM AUTHOR Top Casino Games That Perform Best with Crypto How Smart Contracts Improve Transparency in Online Gambling Why January Is the Best Time to Try Crypto Casinos