Math 8 · Unit 2: Expressions, formulae and equations · Cambridge Lower Secondary Maths Stage 8

Questions

1. 1. Solve 2x + 3 < 11.

   • x < 7
   • x = 4
   • x < 4
   • x > 4
   Check

2. 2. Which integers satisfy −2 < x ≤ 1?

   • −2, −1, 0, 1
   • −1, 0, 1
   • −1, 0
   • −2, −1, 0
   Check

3. 3. Solve −x > 2.

   • x < −2
   • x < 2
   • x > −2
   • x > 2
   Check

4. 4. On a number line, x ≥ 3 has a … circle at 3.

   • filled
   • no
   • open
   Check

5. 5. Solve 5x ≥ 20.

   • x > 4
   • x ≤ 4
   • x ≥ 4
   • x ≥ 15
   Check

6. 6. What does x < 7 mean?

   • x is more than 7
   • x is less than 7
   • x is 7 or less
   • x is 7
   Check

7. 7. Solve x − 6 ≤ −1.

   • x ≤ −7
   • x ≤ 5
   • x ≤ 7
   • x ≥ 5
   Check

8. 8. What is the largest integer that satisfies 3x < 20?

   • 20
   • 6.67
   • 7
   • 6
   Check

9. 9. Solve 4 − 2x > 10.

   • x > −3
   • x < −3
   • x < 3
   • x > 3
   Check

10. 10. Which number is NOT a solution of x > −1?

    • 0
    • 2
    • −0.5
    • −1
    Check

11. 11. Write 'x is at least 10'.

    • x < 10
    • x ≤ 10
    • x > 10
    • x ≥ 10
    Check

12. 12. Write 'x is at most 5'.

    • x < 5
    • x > 5
    • x ≤ 5
    • x ≥ 5
    Check

13. 13. Solve x/3 > 2.

    • x > 5
    • x < 6
    • x > 2/3
    • x > 6
    Check

14. 14. How many integers satisfy 1 ≤ x < 5?

    • 5
    • 3
    • 4
    • 6
    Check

15. 15. Solve 3x + 1 ≥ x + 9.

    • x ≤ 4
    • x ≥ 4
    • x ≥ 2.5
    • x ≥ 5
    Check