Number systems worksheet with answers

Free printable Number systems worksheet: 6 problems from easy to exam level, with an answer key. Print it or save it as a PDF.

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Name: ____________________   Date: ____________

1.Easy
click the bits to set them012806403201608040201

Set the bits so the 8-bit register holds 0x37. What is the pattern's value N in decimal?

0x37
N =
2.Easy
click the bits to set them012806403201608040201

Set the bits so the 8-bit register holds 0x14. What is the pattern's value N in decimal?

0x14
N =
3.Medium
place values in two's complement1−12816413211608140201

The 8-bit pattern 1111 0100 stores a signed integer in two's complement. What is its value N in decimal?

1111 01008 bit
N =
4.Medium
place values in two's complement1−12816403211608040201

The 8-bit pattern 1101 0000 stores a signed integer in two's complement. What is its value N in decimal?

1101 00008 bit
N =
5.Hard
click the bits to set them012806403201608040201

Set the bits to the 8-bit result of 1000 0100 OR 0010 0111. What is the result's value R in decimal?

1000 0100OR0010 0111
R =
6.Hard
click the bits to set them012806403201608040201

Set the bits to the 8-bit result of 1001 1101 << 1. What is the result's value R in decimal?

1001 1101<< 1
R =

Answer key

  1. 1. N = 55
  2. 2. N = 20
  3. 3. N = −12
  4. 4. N = −48
  5. 5. R = 167
  6. 6. R = 58

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