Math 7 · Unit 1: Integers · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Worked example: work out ∛125 − √49.

   • −12
   • 76
   • 2
   • −2
   Check

2. 2. Work out: 3² + 4²

   • 14
   • 49
   • 7
   • 25
   Check

3. 3. Work out: 6² + 7²

   • 13
   • 26
   • 169
   • 85
   Check

4. 4. Work out: 9² + 10²

   • 361
   • 38
   • 181
   • 19
   Check

5. 5. Work out: √64

   • 16
   • 6
   • 8
   • 32
   Check

6. 6. Work out: √100

   • 10
   • 50
   • 5
   • 20
   Check

7. 7. Work out: √225

   • 15
   • 25
   • 45
   • 112
   Check

8. 8. Work out: √169

   • 12
   • 84
   • 13
   • 14
   Check

9. 9. Work out: 1³ + 2³

   • 6
   • 5
   • 9
   • 3
   Check

10. 10. Work out: 3³ + 5³

    • 152
    • 16
    • 8
    • 34
    Check

11. 11. Work out: 4³ − 2³

    • 8
    • 56
    • 32
    • 48
    Check

12. 12. Work out: √64 − ∛64

    • 0
    • 4
    • 56
    • 2
    Check

13. 13. Work out: √25 − ∛125

    • 10
    • 0
    • 2
    • 5
    Check

14. 14. Work out: ∛27 − √16

    • 7
    • −7
    • 1
    • −1
    Check

15. 15. Work out: ∛216

    • 6
    • 3
    • 72
    • 12
    Check

16. 16. Work out: ∛512

    • 7
    • 8
    • 4
    • 64
    Check

17. 17. Work out: ∛1000

    • 100
    • 10
    • 333
    • 30
    Check

18. 18. Work out: ∛1728

    • 12
    • 14
    • 576
    • 9
    Check

19. 19. Which number goes in the box? √□ = 20

    • 8000
    • 400
    • 40
    • 200
    Check

20. 20. Which number goes in the box? √□ = 25

    • 625
    • 525
    • 50
    • 125
    Check