Critical Thinking Worksheet
Recommended for 2nd Grade — High School
Critical Thinking Worksheet
Name: ____________________Date: ____________
Instructions: Analyzing riddles, spotting flaws in reasoning, and making evidence-based choices.
20 problems
- Which one does not belong? 1 8 5 2 10
- A = 20, B = 10, C = 4 → the smallest is ____
- Which one does not belong? 9 7 8 4 3
- Which one does not belong? 10 1 4 2 3
- Which one does not belong? 5 9 6 4 2
- A = 18, B = 2, C = 1 → the smallest is ____
- A = 8, B = 4, C = 2 → the smallest is ____
- A = 20, B = 7, C = 2 → the smallest is ____
- Which one does not belong? 8 10 1 3 7
- A = 15, B = 13, C = 11 → the smallest is ____
- Which one does not belong? 3 4 11 6 7
- A = 13, B = 3, C = 2 → the smallest is ____
- Which one does not belong? 7 6 8 3 5
- Which one does not belong? 3 2 5 6 7
- A = 8, B = 2, C = 1 → the smallest is ____
- Which one does not belong? 5 1 3 11 8
- A = 10, B = 7, C = 3 → the smallest is ____
- A = 6, B = 2, C = 1 → the smallest is ____
- A = 15, B = 7, C = 3 → the smallest is ____
- A = 16, B = 4, C = 1 → the smallest is ____