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Grade 12 Hexadecimal Worksheet with Answers

Grade 12 (US) · Year 13 (UK) · Class 12 (India) · Computer Science

Unit 3: Systems & DataData Representation

Converting between hexadecimal, decimal and binary, and reading hex colour codes. This free high school worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Hexadecimal

Grade 12 · Computer Science

Score___ / 12

Name

Class

Date

Learning goal: Data Representation

Directions: Read each question carefully and write your answer on the line. Use the diagram to help you.

RememberHexadecimal (base 16)

Digits0–9, then A=10 … F=15Two places16s and 1s2F = 2×16 + 15 = 47Hex ↔ binary1 hex digit = 4 bitsF = 1111, A = 1010
  1. 1

    What is the hexadecimal number AE in decimal?

    16sA1sEA=10 B=11 C=12D=13 E=14 F=15
  2. 2

    Write the decimal number 55 in hexadecimal.

    16s1sA=10 B=11 C=12D=13 E=14 F=15
  3. 3

    What is the hexadecimal number EF in decimal?

    16sE1sFA=10 B=11 C=12D=13 E=14 F=15
  4. 4

    What is the hexadecimal number 32 in decimal?

    16s31s2A=10 B=11 C=12D=13 E=14 F=15
  5. 5

    What is the hexadecimal number 30 in decimal?

    16s31s0A=10 B=11 C=12D=13 E=14 F=15
  6. 6

    What is the hexadecimal number 7D in decimal?

    16s71sDA=10 B=11 C=12D=13 E=14 F=15
  7. 7

    Write the decimal number 63 in hexadecimal.

    16s1sA=10 B=11 C=12D=13 E=14 F=15
  8. 8

    What is the hexadecimal number C6 in decimal?

    16sC1s6A=10 B=11 C=12D=13 E=14 F=15
  9. 9

    Write the decimal number 73 in hexadecimal.

    16s1sA=10 B=11 C=12D=13 E=14 F=15
  10. 10

    Write the decimal number 133 in hexadecimal.

    16s1sA=10 B=11 C=12D=13 E=14 F=15
  11. 11

    What is the hexadecimal number 59 in decimal?

    16s51s9A=10 B=11 C=12D=13 E=14 F=15
  12. 12

    Write the decimal number 95 in hexadecimal.

    16s1sA=10 B=11 C=12D=13 E=14 F=15

★ Challenge corner for fast finishers

How many different patterns can 6 bits make?

32168421

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/computer/12/hexadecimal

Answer key (click to show)
  1. 1.174
  2. 2.37
  3. 3.239
  4. 4.50
  5. 5.48
  6. 6.125
  7. 7.3F
  8. 8.198
  9. 9.49
  10. 10.85
  11. 11.89
  12. 12.5F
  13. ★64 (challenge corner)

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