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Number Types Assessment
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Year 6 - Number Types Assessment
📚 Part 1: Multiple Choice
1. Which number is a prime number?
15172125
2. What is the smallest composite number?
1234
3. Which of these is a perfect square?
24365072
4. The 5th triangular number is:
10152025
5. Which numbers are composite? (Select all that apply)
9111416
6. What is √49?
6789
7. Which statement is true about the number 1?
It is primeIt is compositeIt is neither prime nor compositeIt is both prime and composite
8. The next triangular number after 21 is:
24262830
✏️ Part 2: Written Answers
9. List all prime numbers between 20 and 40:
10. Find all factors of 24:
11. Is 51 prime or composite? Explain your answer:
12. Complete the pattern: 1, 4, 9, 16, _____, _____, _____
These are called _____________ numbers.
13. What is the largest prime number less than 50?
14. Calculate the 8th triangular number. Show your working:
15. True or False: All even numbers except 2 are composite.
Answer: _____________ Explanation: _________________________
🎨 Part 3: Visual Representations
16. Draw dots to show the triangular number 10:
17. Draw a square arrangement to show why 16 is a square number:
18. Use factor trees to show that 30 is composite:
19. Circle all the prime numbers in this list:
2, 6, 11, 15, 19, 22, 23, 27, 29, 33, 37, 39
20. Fill in the missing numbers in this sequence of square numbers:
1, 4, _____, 16, _____, 36, _____, 64, _____, 100
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