Math 9 · Unit 8: Fractions · Cambridge Lower Secondary Maths Stage 9

Questions

1. 1. Work out (1/2 + 1.5)² + 9.

   • 25
   • 4
   • 11
   • 13
   Check

2. 2. Work out (2 3/5 − 0.6)³ − 3.

   • 1
   • 5
   • 8
   • 3
   Check

3. 3. Work out 5² − (4 1/4 + 0.75).

   • 20
   • 5
   • 30
   • 15
   Check

4. 4. Work out 10 × (2.5 + 5 1/2).

   • 80
   • 30.5
   • 8
   • 55
   Check

5. 5. Work out (3.3 + 5 7/10)².

   • 81
   • 64
   • 18
   • 9
   Check

6. 6. Work out 6 × 1.2 − 2 3/5.

   • 5.4
   • 4.8
   • 9.8
   • 4.6
   Check

7. 7. Work out 3.5 × 1.5 × 12 in the easiest way.

   • 42
   • 75
   • 18
   • 63
   Check

8. 8. Work out 1.75 × 2 1/2 × 32 in an easy order.

   • 56
   • 175
   • 140
   • 112
   Check

9. 9. Work out 4.7 × 35 by writing 4.7 as 47/10.

   • 16.45
   • 140.5
   • 164.5
   • 1645
   Check

10. 10. Work out 1.5 × 2.5 × 12.

    • 16
    • 45
    • 54
    • 36
    Check

11. 11. Work out 3.25 × 1 1/2 × 48.

    • 156
    • 226
    • 234
    • 117
    Check

12. 12. Work out 3.3 × 15.

    • 48
    • 495
    • 45.3
    • 49.5
    Check

13. 13. Work out the volume of this cuboid.

    • 70 cm³
    • 87.5 cm³
    • 175 cm³
    • 26 cm³
    Check

14. 14. Work out 0.44 × 5².

    • 110
    • 4.84
    • 2.2
    • 11
    Check

15. 15. Work out 0.9 × 6 2/3.

    • 6.6
    • 6
    • 7.4
    • 5.4
    Check

16. 16. Work out 2.4 × (3³ − 7).

    • 57.8
    • 48
    • 4.8
    • 50.4
    Check

17. 17. Work out 1.6 × 5/8.

    • 1
    • 0.1
    • 8
    • 2.56
    Check

18. 18. Work out 0.48 × 52.

    • 25.92
    • 2.496
    • 249.6
    • 24.96
    Check

19. 19. Work out 0.456 × 53.

    • 2.4168
    • 241.68
    • 23.712
    • 24.168
    Check

20. 20. The diagram shows a triangle. What is its area?

    • 0.8 m²
    • 1.6 m²
    • 0.4 m²
    • 8 m²
    Check