Math 5 · Unit 3: Numbers and sequences · Cambridge Primary Maths Stage 5

Questions

1. 1. Which is a square number?

   • 20
   • 12
   • 36
   • 30
   Check

2. 2. What is 7 squared (7 × 7)?

   • 49
   • 56
   • 42
   • 14
   Check

3. 3. What is the next square number after 64?

   • 70
   • 100
   • 81
   • 72
   Check

4. 4. Which is a triangular number?

   • 9
   • 12
   • 10
   • 8
   Check

5. 5. What is the next triangular number? 1, 3, 6, 10, ?

   • 15
   • 14
   • 13
   • 16
   Check

6. 6. What is the 6th triangular number?

   • 21
   • 36
   • 18
   • 20
   Check

7. 7. Which number is both square and triangular?

   • 25
   • 36
   • 16
   • 21
   Check

8. 8. What is 10 squared?

   • 1000
   • 20
   • 110
   • 100
   Check

9. 9. Which is NOT a square number?

   • 25
   • 16
   • 50
   • 81
   Check

10. 10. Two triangular numbers next to each other add to a square number. 6 + 10 = ?

    • 16
    • 15
    • 26
    • 60
    Check

11. 11. How many dots in a 5 by 5 square pattern?

    • 20
    • 10
    • 25
    • 55
    Check

12. 12. A triangle pattern has rows of 1, 2, 3, 4, 5 dots. How many dots?

    • 12
    • 25
    • 5
    • 15
    Check

13. 13. Which pair are both square numbers?

    • 6 and 9
    • 4 and 9
    • 4 and 8
    • 10 and 16
    Check

14. 14. Square numbers between 20 and 50 are …

    • 24, 36 and 48
    • 25 and 36
    • 25, 36 and 49
    • 21, 28 and 36
    Check

15. 15. What is 3 squared plus 4 squared?

    • 49
    • 14
    • 12
    • 25
    Check