Math 7 · Unit 2: Expressions, formulae and equations · Cambridge Lower Secondary Maths Stage 7

Questions

1. 1. Is 8h an expression (E) or a formula (F)?

   • F (formula)
   • E (expression)
   Check

2. 2. Is v = 9u an expression (E) or a formula (F)?

   • F (formula)
   • E (expression)
   Check

3. 3. Is 9u + 3 an expression (E) or a formula (F)?

   • F (formula)
   • E (expression)
   Check

4. 4. Is m = 4 + n an expression (E) or a formula (F)?

   • E (expression)
   • F (formula)
   Check

5. 5. Is G = 2x + y an expression (E) or a formula (F)?

   • E (expression)
   • F (formula)
   Check

6. 6. Is b − c an expression (E) or a formula (F)?

   • E (expression)
   • F (formula)
   Check

7. 7. Work out the value of x + 6 when x = 1.

   • 5
   • 16
   • 7
   • 6
   Check

8. 8. Work out the value of x + 6 when x = 2.

   • 4
   • 12
   • 8
   • 26
   Check

9. 9. Work out the value of x + 6 when x = 3.

   • 9
   • 3
   • 18
   • 36
   Check

10. 10. Work out the value of x + 6 when x = 4.

    • 10
    • 2
    • 24
    • 46
    Check

11. 11. Work out the value of n − 1 when n = 5.

    • 5
    • 3
    • 4
    • 6
    Check

12. 12. Work out the value of n − 1 when n = 6.

    • 6
    • 4
    • 7
    • 5
    Check

13. 13. Work out the value of n − 1 when n = 7.

    • 5
    • 8
    • 7
    • 6
    Check

14. 14. Work out the value of n − 1 when n = 8.

    • 9
    • 7
    • 6
    • 8
    Check

15. 15. Work out the value of each expression and match it to its correct answer. The first one has been done for you: y + 2 when y = 3 is 5.

    • y + 2 when y = 3
    • y − 2 when y = 10
    • 4 + y when y = 2
    • 10 − y when y = 1
    • y + 3 when y = 0

    • 8
    • 3
    • 5
    • 9
    • 6
    Check

16. 16. True or false? The value of 2m when m = 5 is 7.

    • True
    • False
    Check

17. 17. True or false? The value of 3m when m = 8 is 24.

    • True
    • False
    Check

18. 18. True or false? The value of 9p when p = 2 is 11.

    • True
    • False
    Check

19. 19. True or false? The value of w/2 when w = 6 is 3.

    • True
    • False
    Check

20. 20. True or false? The value of x/3 when x = 12 is 6.

    • True
    • False
    Check