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

Questions

1. 1. Worked example: find the lowest common multiple (LCM) of 6 and 9.

   • 36
   • 18
   • 54
   • 3
   Check

2. 2. Write down the first four multiples of 4.

   • 4, 6, 8, 10
   • 1, 2, 4, 8
   • 4, 8, 12, 16
   • 4, 16, 64, 256
   Check

3. 3. Write down the first four multiples of 7.

   • 1, 7, 14, 21
   • 7, 14, 21, 27
   • 7, 49, 343, 2401
   • 7, 14, 21, 28
   Check

4. 4. Write down the first four multiples of 12.

   • 12, 24, 36, 38
   • 12, 24, 36, 48
   • 12, 22, 32, 42
   • 1, 2, 3, 4, 6, 12
   Check

5. 5. Write down the first four multiples of 30.

   • 3, 30, 300, 3000
   • 30, 60, 80, 100
   • 30, 40, 50, 60
   • 30, 60, 90, 120
   Check

6. 6. Question 2: how many multiples of 10 are less than 100?

   • 100
   • 9
   • 10
   • 11
   Check

7. 7. Question 3a: work out the multiples of 8 that are less than 50.

   • 8, 16, 24, 32, 40
   • 8, 16, 24, 32, 40, 48
   • 8, 16, 24, 32, 40, 48, 56
   • 1, 2, 4, 8
   Check

8. 8. Question 3b: work out the multiples of 5 that are less than 50.

   • 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
   • 10, 20, 30, 40
   • 1, 5, 10, 25, 50
   • 5, 10, 15, 20, 25, 30, 35, 40, 45
   Check

9. 9. Question 3c: the multiples of 8 less than 50 are 8, 16, 24, 32, 40, 48. Write down the lowest common multiple of 8 and 5.

   • 45
   • 13
   • 40
   • 80
   Check

10. 10. Question 4a: find the first five common multiples of 2 and 3.

    • 6, 12, 18, 24, 30
    • 2, 3, 4, 6, 8
    • 6, 12, 18, 24, 36
    • 5, 10, 15, 20, 25
    Check

11. 11. Question 4b: the common multiples of 2 and 3 are multiples of what number?

    • 12
    • 1
    • 5
    • 6
    Check

12. 12. Question 4c: find the lowest common multiple of 2 and 3.

    • 12
    • 6
    • 1
    • 5
    Check

13. 13. Question 5a: write down the first three common multiples of 6 and 4.

    • 10, 20, 30
    • 4, 6, 8
    • 24, 48, 72
    • 12, 24, 36
    Check

14. 14. Question 5b: the common multiples of 6 and 4 are multiples of what number?

    • 2
    • 24
    • 10
    • 12
    Check

15. 15. Question 5c: the common multiples of 6 and 4 are multiples of ☐. Write down the lowest common multiple of 6 and 4.

    • 12
    • 10
    • 2
    • 24
    Check

16. 16. Question 6a: find the lowest common multiple of 3 and 10.

    • 30
    • 13
    • 60
    • 10
    Check

17. 17. Question 6b: find the lowest common multiple of 4 and 10.

    • 40
    • 14
    • 10
    • 20
    Check

18. 18. Question 6c: find the lowest common multiple of 5 and 10.

    • 5
    • 50
    • 15
    • 10
    Check

19. 19. Question 7: are all the common multiples of 3 and 5 multiples of 15?

    • Yes
    • No
    Check

20. 20. Question 8: find the lowest common multiple of 6 and 14.

    • 42
    • 84
    • 2
    • 28
    Check