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A comprehensive test on number systems, covering conversions between binary, octal, decimal, and hexadecimal bases. It includes problems on mixed base conversions, decimal to other bases, other bases to decimal, direct base conversions, binary arithmetic, fractional number systems, and applications. The test also features a bonus section with advanced conversions and problems, along with a detailed answer key for self-assessment and learning. This resource is ideal for students studying computer science, digital electronics, or mathematics, offering practical exercises to reinforce their understanding of number systems and base conversions.
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Number Systems Comprehensive Test Name: _________________________ Date: _______________ Score: ______/ Instructions: Solve each problem completely. Show all work and conversion steps. Box your final answers. Use proper notation for different number systems. Part I: Mixed Base Conversions (25 points) Problem 1 (15 points) Convert between different number systems: a) 347โ = ?โโ b) 1A5โโ = ?โโ c) 193โโ = ?โโ d) 87โโ = ?โ e) 2Bโโ = ?โ Problem 2 (10 points) Perform the following conversions showing all steps: a) 101101โ = ?โ = ?โโ b) A7โโ = ?โ = ?โ c) 456โ = ?โโ = ?โ d) Find the decimal equivalent of 777โ and express it in hexadecimal Part II: Decimal to Other Bases Conversion (30 points) Problem 3 (8 points) Convert the following decimal numbers to binary: a) 25โโ = ?โ b) 63โโ = ?โ c) 128โโ = ?โ d) 255โโ = ?โ Problem 4 (8 points)
Convert the following decimal numbers to octal: a) 64โโ = ?โ b) 156โโ = ?โ c) 512โโ = ?โ d) 999โโ = ?โ Problem 5 (8 points) Convert the following decimal numbers to hexadecimal: a) 47โโ = ?โโ b) 255โโ = ?โโ c) 4096โโ = ?โโ d) 1000โโ = ?โโ Problem 6 (6 points) Convert the decimal number 875โโ to: a) Binary b) Octal c) Hexadecimal Part III: Other Bases to Decimal Conversion (25 points) Problem 7 (10 points) Convert the following binary numbers to decimal: a) 1101โ = ?โโ b) 10110110โ = ?โโ c) 11111111โ = ?โโ d) 1000000โ = ?โโ e) 10101010โ = ?โโ Problem 8 (8 points) Convert the following octal numbers to decimal:
a) 1011โ + 110โ = ?โ b) 11011โ + 10110โ = ?โ c) 111111โ + 1โ = ?โ d) 10101โ + 11010โ + 1001โ = ?โ Show all carry operations clearly. Problem 13 (10 points) Perform the following binary subtractions: a) 1101โ - 101โ = ?โ b) 10000โ - 111โ = ?โ c) 11010โ - 1011โ = ?โ Show all borrow operations clearly. Part VI: Fractional Number Systems (15 points) Problem 14 (8 points) Convert the following decimal fractions to binary (show at least 6 binary places): a) 0.625โโ = ?โ b) 0.375โโ = ?โ c) 0.1โโ = ?โ (approximate) d) 0.75โโ = ?โ Problem 15 (7 points) Convert the following binary fractions to decimal: a) 0.1011โ = ?โโ b) 0.101โ = ?โโ c) 1.101โ = ?โโ d) Convert 3.25โโ to binary Part VII: Applications and Problem Solving (10 points) Problem 16 (5 points) A computer memory address is given as 2A4Fโโ. a) Convert this address to decimal
b) Convert this address to binary c) How many bits are needed to represent this address? Problem 17 (5 points) In a digital system, data is stored in 8-bit binary format. What is: a) The smallest decimal number that can be represented? b) The largest decimal number that can be represented? c) How many different values can be stored in 8 bits? d) Express the largest value in hexadecimal Bonus Section (15 extra points) Problem 18 (8 points) Work with other number bases: a) Convert 123โ (base 5) to decimal b) Convert 25โโ to base 5 c) Convert 101โ (base 3) to decimal d) What is the largest 3-digit number in base 4? Problem 19 (7 points) Advanced conversions: a) Convert 1A.Bโโ to decimal (include fractional part) b) Convert 15.625โโ to hexadecimal c) Perform the addition: 1Aโโ + 2Fโโ = ?โโ Answer Key: Part I: ๏ท Problem 1: a) 231โโ, b) 421โโ, c) C1โโ, d) 127โ, e) 101011โ ๏ท Problem 2: a) 55โ, 2Dโโ, b) 10100111โ, 247โ, c) 302โโ, 100101110โ, d) 511โโ = 1FFโโ