Math 5 · Unit 17: Number and the laws of arithmetic · Cambridge Primary Maths Stage 5

Questions

1. 1. 3 + 4 × 2 = ?

   • 11
   • 10
   • 9
   • 14
   Check

2. 2. (3 + 4) × 2 = ?

   • 14
   • 9
   • 11
   • 24
   Check

3. 3. 20 − 12 ÷ 4 = ?

   • 2
   • 8
   • 17
   • 5
   Check

4. 4. 6 × 14 = 6 × 10 + 6 × ?

   • 6
   • 4
   • 10
   • 14
   Check

5. 5. 25 × 7 × 4 is easiest to work out as …

   • 25 × 7 first
   • 25 × 4 × 7 = 100 × 7
   • 7 × 4 × 25 = 28 × 25
   • you must go left to right
   Check

6. 6. 25 × 7 × 4 = ?

   • 700
   • 7004
   • 175
   • 600
   Check

7. 7. (10 − 4) × (2 + 3) = ?

   • 30
   • 12
   • 9
   • 25
   Check

8. 8. Which is the same as 8 × 23?

   • 8 × 20 + 3
   • 8 × 20 + 8 × 3
   • 8 + 20 × 3
   • 8 × 2 + 8 × 3
   Check

9. 9. 5 + 5 × 5 = ?

   • 50
   • 125
   • 15
   • 30
   Check

10. 10. Where do brackets go to make 2 + 3 × 4 = 20?

    • (2 + 3) × 4
    • 2 + (3 × 4)
    • no brackets needed
    • (2 + 3 × 4)
    Check

11. 11. 18 ÷ 3 + 6 = ?

    • 2
    • 9
    • 12
    • 3
    Check

12. 12. Is 7 + 9 = 9 + 7?

    • Yes
    • No
    Check

13. 13. Is 9 − 7 = 7 − 9?

    • Yes
    • No
    Check

14. 14. 4 × (6 + 5) = ?

    • 30
    • 29
    • 24
    • 44
    Check

15. 15. 12 + 8 ÷ 2 − 3 = ?

    • 10
    • 17
    • 13
    • 7
    Check