Review Comments of Math Practice Questions 28/04/2025
Scoring and Feedback:
Question 1
- Final Answer: Correct (5)
- Solving Steps: Correct (3x = 15 → x = 5)
- Score: 1.0
- Feedback: Perfect! Correct steps and answer.
Question 2
- Final Answer: Correct (-x + 16)
- Solving Steps: Correct (expansion and simplification steps are clear)
- Score: 1.0
- Feedback: Well done! Expansion and simplification are accurate.
Question 3
- Final Answer: Correct (3x(2x - 3))
- Solving Steps: Correct (fully factorised)
- Score: 1.0
- Feedback: Excellent! Fully factorised with correct steps.
Question 4
- Final Answer: Correct (y = 2, x = 4)
- Solving Steps: Correct (substitution and solving steps are clear)
- Score: 1.0
- Feedback: Great job solving the simultaneous equations!
Question 5
- Final Answer: Correct (2x - 4)
- Solving Steps: Correct (simplification steps are accurate)
- Score: 1.0
- Feedback: Perfect simplification!
Question 6
- Final Answer: Correct (18)
- Solving Steps: Correct (clear steps to isolate x)
- Score: 1.0
- Feedback: Correctly solved for x with clear steps.
Question 7
- Final Answer: Correct (x ≥ -3)
- Solving Steps: Correct (inequality manipulation is accurate)
- Score: 1.0
- Feedback: Well solved! Inequality steps are correct.
Question 8
- Final Answer: Correct (41)
- Solving Steps: Correct (substitution and calculation steps are clear)
- Score: 1.0
- Feedback: Perfect substitution and calculation!
Question 9
- Final Answer: Correct (x = 2, y = 3)
- Solving Steps: Correct (substitution and solving steps are accurate)
- Score: 1.0
- Feedback: Excellent work solving the simultaneous equations!
Question 10
- Final Answer: Correct (2x² - 5x - 12)
- Solving Steps: Correct (expansion and simplification steps are clear)
- Score: 1.0
- Feedback: Great job expanding and simplifying!