Grade 8 Find the Bug Computer Worksheets
Grade 8 computer science practice: Find the bug in the pseudocode.
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Sample find the bug questions
Compare what the program should do with what each numbered line actually does, then choose the line that is wrong. These examples come from the Easy setting; every generated worksheet draws a fresh set.
- Goal half of 8. 1 x=8; 2 x=x-2; 3 PRINT x. Which line has the bug?
Line 2 · Line 1
- Goal area=L*W. 1 L=4; 2 W=3; 3 PRINT L+W. Which line has the bug?
Line 3 · No bug
- Goal x=12. 1 x=3; 2 x=x*4; 3 PRINT x. Which line has the bug?
Line 1 · No bug
- Goal print 6. 1 s=0; 2 FOR i=1 TO 3: s=s+i; 3 PRINT s*2. Bug line?
Line 2 · Line 3
Check the sample answers
- Line 2
line 2 subtracts 2 instead of halving 8. - Line 3
line 3 adds length and width instead of multiplying. - No bug
3 times 4 is 12, so the code is correct. - Line 3
line 3 doubles the sum, printing 12 not 6.
Practice focus
A bug is a step that makes a program behave differently from its goal, such as a wrong operator, value, or repeat count. Debugging means checking each line against the stated goal until you find the one that does not match.
Grade placement is a planning guide for choosing practice. The registry records standard-code mappings as unreviewed, so these pages are not a claim of alignment with a national standard.
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View worksheets →About these worksheets
Find the bug in the pseudocode. These Grade 8 computer science worksheets stay with that single skill: every question is answerable from the printed page, and the answer sheet explains why each answer is correct.
How to use the worksheets
- Choose a difficulty, then read the printed directions before answering the first question.
- Complete the questions on paper, marking one answer for each item.
- Compare the result with the answer sheet and read the short explanation together.
How this practice can help students
A bug is a step that makes a program behave differently from its goal, such as a wrong operator, value, or repeat count. Debugging means checking each line against the stated goal until you find the one that does not match. Generating the page again keeps the same learning goal while changing the questions, so a learner can revisit the skill without repeating the same items.
Review and next steps
Ask the learner to say what made one answer better than the others. Grade placement is a planning guide for choosing practice. The registry records standard-code mappings as unreviewed, so these pages are not a claim of alignment with a national standard.
Find the bug in the pseudocode in Grade 8
Grade 8 computer science practice: Find the bug in the pseudocode.
How to use these worksheets
- Choose a difficulty that lets the learner succeed, then move up.
- Press Generate for a new set of questions whenever more practice is needed.
- Print the sheet and keep the optional answer page to mark it in seconds.
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Practice that fits the classroom and the kitchen table
Short, regular practice is one of the most effective ways for children to build skills and confidence. Because these worksheets are generated fresh, they work for morning work, homework, quick revision or an extra challenge at home. Keep the answer sheet to mark the work in seconds.
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- These grade 8 find the bug computer worksheets are made for Grade 8 learners, with four difficulty levels so you can match the practice to the child.
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- Yes — switch on the answer page and the generator prints a matching answer key with every grade 8 find the bug computer worksheets sheet.
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