Worksheets › Class 6 › Decomposition: Breaking Problems Down
Class 6 · Computational Thinking and AI worksheetDecomposition: Breaking Problems Down
CBSE Computational Thinking and AI. Number clues, transfers, reading tables, fewest coins, ordering from clues and who-has-what puzzles. Every sheet has 20 questions in three sections and an answer key, and the questions change every time.
Sample questions
Real questions from this chapter, as the app sets them. Tap Answer to see the answer and working.
Section A · multiple choice
- 1.
Breaking a big problem into smaller parts that are easier to solve is:
- pattern recognition
- automation
- abstraction
- decomposition
Answer
(d) decomposition
- 2.
I am a 3-digit number. The sum of my digits is 13. I am even. My hundreds digit is 3. I am between 285 and 372. My tens digit is 6 less than my units digit. Who am I?
- 823
- 319
- 328
- 337
Answer
(c) 328
check the clues one by one; only this number fits all of them
- 3.
Rohan has 10, Priya has 40 and Varun has 30 beads. In turn: Rohan gives 6 beads to Priya; Priya gives 9 beads to Varun; Varun gives 6 beads to Rohan. How many beads does Rohan have at the end?
- 10
- 12
- 37
- 33
Answer
(a) 10
after each step: Rohan, Priya, Varun end with 10, 37, 33 (the total stays 80)
Section B · short answer
- 4.
What is decomposition?
Answer
Breaking a big or complex problem into smaller parts that are easier to understand and solve.
- 5.
I am a 3-digit number. The sum of my digits is 13. I am between 755 and 860. I am odd. My tens digit is 5 less than my units digit. Who am I?
Answer
805
check the clues one by one; only this number fits all of them
Section C · long answer
- 6.
Decompose the problem "organise a class library". List four sub-problems and say how each helps.
Answer
Collect books (to have something to lend); sort them by type (so they are easy to find); make a register of who borrows what (so books come back); set rules for lending (so it is fair). Together they solve the whole problem.
Fresh sheets for your child
In the app, every Decomposition: Breaking Problems Down sheet is new: the app remembers the questions your child has already had and leaves them out. Print the sheet as a PDF, or use notebook mode and write the answers in a notebook.
Coming soon for Android and iPhone.