Andrew Bloomenthal has 20+ years of editorial experience as a financial journalist and as a financial services marketing writer. Hiroko Masuike/Getty Images A pyramid scheme funnels earnings from ...

Leave the digit the same if the next digit is less than 5 (this is called rounding down) but increase it by 1 if the next digit is 5 or more (this is called rounding up). The rounded value must be a ...