Presentation on theme: "Calculating in Other Bases"— Presentation transcript:
1Calculating in Other Bases Section 4.3Calculating in Other Bases
2Objectives Change numerals in bases other than ten to base ten. Change base ten numerals to numerals in other bases.Add and Subtract in bases other than ten.Multiply and Divide in bases other than ten.
3Key TermsDigital – a word used in computer technology and refers to a method of encoding numbers, letters, visual images, and sounds using a base two system.Binary – base two system.Octal System – base eight.Hexadecimal System – base sixteen.
4BackgroundAs you have seen, so far, most numeral systems are based on powers of ten, except for the Babylonian and Mayan system.Babylonian system based on powers of 60.Mayan system based on powers of 20.Other societies around the world, including ours, use bases 2, 3, 4, 5, or 8.Computers, DVD players, and cell phones use bases 2, 8, and 16.