Have You Heard the Buzz? (opens in new tab)
You count aloud every whole number starting from 1. But for any number that’s a multiple of 7 or that contains a digit 7, you say “buzz.” How often are you “buzzing”?
Read the original articleYou count aloud every whole number starting from 1. But for any number that’s a multiple of 7 or that contains a digit 7, you say “buzz.” How often are you “buzzing”?
Read the original article