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Grade 10 · Computer science

Grade 10 Computer science practice

20 questions on digital literacy, algorithms & logic, data systems. The answer key is a separate download.

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What is on the worksheet

  1. A file shrinks from 960 KB to 720 KB. What percentage of its original size was saved?

  2. FOR i FROM 3 TO 84 INCLUSIVE STEP 3: print i. How many numbers are printed?

  3. How many bits are in 3813 bytes?

  4. Python: total = 0 for n in range(1, 5): total += n What is total?

  5. A 560 MB payload is sent over a constant 5 Mbps link. Use decimal MB and ignore overhead. Find transfer time. Round the final result to 4 decimal places if needed. Answer in s.

  6. An outer loop runs 20 times. Each time, an inner loop prints once on each of 6 iterations. How many prints occur?

  7. A 96 MB payload is sent over a constant 110 Mbps link. Use decimal MB and ignore overhead. Find transfer time. Round the final result to 4 decimal places if needed. Answer in s.

  8. Convert the binary number 11100000 to decimal.

  9. An outer loop runs 15 times. Each time, an inner loop prints once on each of 4 iterations. How many prints occur?

  10. A file shrinks from 460 KB to 161 KB. What percentage of its original size was saved?

  11. A file shrinks from 1640 KB to 328 KB. What percentage of its original size was saved?

  12. A file shrinks from 260 KB to 78 KB. What percentage of its original size was saved?

  13. A 92 MB payload is sent over a constant 50 Mbps link. Use decimal MB and ignore overhead. Find transfer time. Round the final result to 4 decimal places if needed. Answer in s.

  14. FOR i FROM 11 TO 91 INCLUSIVE STEP 8: print i. How many numbers are printed?

  15. A 712 MB payload is sent over a constant 200 Mbps link. Use decimal MB and ignore overhead. Find transfer time. Round the final result to 4 decimal places if needed. Answer in s.

  16. FOR i FROM 15 TO 159 INCLUSIVE STEP 9: print i. How many numbers are printed?

  17. A file shrinks from 1040 KB to 364 KB. What percentage of its original size was saved?

  18. How many bits are in 2318 bytes?

  19. An outer loop runs 23 times. Each time, an inner loop prints once on each of 10 iterations. How many prints occur?

  20. FOR i FROM 6 TO 122 INCLUSIVE STEP 4: print i. How many numbers are printed?

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