Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 5
104 practice questions
Topics covered
Practice questions
1–10 of 48 · Normal
Question 1
2 marks · Normal
Answer and see the solution →Calculate . Give your answer correct to 3 significant figures.
Question 2
2 marks · Normal
Answer and see the solution →Write 327 000 in standard form.
Question 3
3 marks · Normal
Answer and see the solution →Complete the table for the numbers below, giving the lower and upper bounds for each measured to the nearest 0.2.
Measured Value Lower Bound Upper Bound 5.4 7.8 12.2 Question 4
3 marks · Normal
Answer and see the solution →Estimate the value of 43.7 × 8.2 by rounding each number to 1 significant figure before multiplying.
Question 5
4 marks · Normal
Answer and see the solution →A milk bottle is filled to 1.25 litres, measured to the nearest 0.05 litre.
(a)[2 marks]Write down the lower and upper bounds for the volume of the milk bottle.
(b)[2 marks]If you pour out 0.30 litres (measured to the nearest 0.01 litre), what is the greatest possible amount of milk left in the bottle?
Question 6
2 marks · Normal
Answer and see the solution →Explain why writing 0.037 as is correct, and why is not considered standard form.
Question 7
3 marks · Normal
Answer and see the solution →A car travels 153 kilometres in 2 hours 35 minutes. Give the average speed in metres per second. Give your answer to 2 decimal places.
Question 8
4 marks · Normal
Answer and see the solution →A solid cuboid has length 10.2 cm, width 4.8 cm (both measured to the nearest 0.1 cm), and height 6.0 cm (measured to the nearest 0.5 cm).
(a)[2 marks]Write down the lower and upper bounds for the height of the cuboid.
(b)[2 marks]Calculate the lower and upper bounds for the volume of the cuboid. Give your answers correct to 3 significant figures.
Question 9
3 marks · Normal
Answer and see the solution →Expand and simplify the expression:
Question 10
4 marks · Normal
Answer and see the solution →Solve the quadratic equation:
Show all working.