Kids
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BrainteenFree
Odd one out (Expert)
Find the number that does not belong with the other three.
- Ages 13–18
- Puzzles
- Puzzle
Curriculum links
- Common Core 4.OA.B.4: Find factor pairs for whole numbers up to 100, recognise multiples, and decide whether a number is prime or composite.
- England NC Y5.MA.MD.2: Know the vocabulary of prime numbers, prime factors and composite numbers, and say whether a number up to 100 is prime.
- England NC Y5.MA.MD.8: Recognise and use square numbers and cube numbers, and the notation for squared (²) and cubed (³).
- BNCC EF06MA05: Classify numbers as prime or composite, use "multiple of", "divisor of" and "factor of", and find divisibility rules.
- Programmes FR C4.MA.NC.3: Use multiples, divisors and prime numbers; decompose a number into prime factors.
Licence: Crayonbird original
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