Worksheets › Class 6 › Pattern Recognition
Class 6 · Computational Thinking and AI worksheetPattern Recognition
CBSE Computational Thinking and AI. Number, letter and shape sequences, repeating blocks, growing patterns, finding the wrong term and simple letter codes. 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.
Spotting what stays the same and what changes in a set of things is called:
- debugging
- abstraction
- decomposition
- pattern recognition
Answer
(d) pattern recognition
- 2.
What comes next? 20, 25, 33, 44, 58, ?
- 75
- 72
- 76
- 74
Answer
(a) 75
the gaps grow by 3: +5, +8, +11, …
- 3.
One number in this sequence is wrong. Which one? 26, 35, 42, 53, 62, 71, 80
- 80
- 53
- 35
- 42
Answer
(d) 42
add 9 each time; it should be 44
Section B · short answer
- 4.
What is pattern recognition?
Answer
Finding what is the same, what repeats or what changes in a regular way, so we can predict what comes next.
- 5.
What comes next? 26, 88, 35, 80, 44, 72, ?
Answer
53
two sequences take turns: 26, 35, … (add 9) and 88, 80, … (take away 8)
Section C · long answer
- 6.
A pattern of matchstick squares in a row uses 4, 7, 10, 13 sticks. (a) What is the rule? (b) How many sticks for 10 squares? (c) Explain why the rule works.
Answer
(a) Add 3 each time: sticks = 3 × squares + 1. (b) 31. (c) The first square needs 4 sticks; each new square shares one side, so it needs only 3 more.
Fresh sheets for your child
In the app, every Pattern Recognition 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.