Glossary for Computer Concepts: numbers
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base: The base is the set of digits to represent a number. Base 10 (the usual human number system) has 10 digits: 0,1,2,3,4,5,6,7,8,9. The place values are powers of 10: 1, 10, 100, 1000 etc.
binary number magic trick: Just for fun, print on heavy paper, cut out and enjoy!
A Magic Trick using binary numbers (PDF file to download)binary to decimal drill: Practice converting binary numbers to decimal
Drill: Convert binary to decimalbinary to decimal: This video demonstrates converting decimal to binary. 5 minutes
Convert binary to decimal: Videobinary to hex drill: Practice converting binary to hexadecimal
Drill: Convert binary to hexadecimalbinary to hex: This video demonstrates converting binary to hex.
Converting Binary to Hexadecimalbinary: Number system in base 2 with two values: 0 and 1.
decimal binary hex: Conversion table
Decimal, Binary and Hexadecimaldecimal to binary drill: Practice converting binary numbers to decimal
Drill: Convert decimal to binarydecimal: Number system with base 10: has digits 0,1,2,3,4,5,6,7,8,9 (the usual human number system)
e notation: Very large and very small numbers are sometimes displayed in scientific, or e notation.
e-notation drill: Practice writing e notation in normal format.
Drill: Value of e notationhex to binary drill: Practice converting hexadecimal to binary.
Drill: Convert hexadecimal to binaryhex to binary: This video show how to convert binary to hexadecimal.
Converting Hexadecimal to Binaryhexadecimal: Base 16: 4 binary digits can be represented by 1 hex digit.
Hexadecimal Numbers: Base 16hexadecimal: Number system with base 16: has 16 digits 0,1,2,3,4,5,6,7,8,9,A,B,C,D, and F
magic trick with binary numbers: Just for fun, print on heavy paper, cut out and enjoy!
A Magic Trick using binary numbers (PDF file to download)numbers: Quantities can be grouped in different ways.
Number systems: groupingRGB: RGB is used on webpages and other display to represent colors as red, green and blue values.
scientific notation 2: Video 2.33 minutes
How to Write Decimals in Scientific Notationscientific notation: Very large or small numbers are often displayed in this format.
Scientific notationscientific: Very large and very small numbers are sometimes displayed in scientific, or e notation.
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