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Exam (elaborations)

Edexcel paper 2022

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6.4 has been rounded to one decimal place. Write down the error interval. b) 6.4 has been truncated to one decimal place. Write down the error interval. ………….. ≤ x < ………….. (2 marks) 3. a) Simplify 30

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  • November 18, 2022
  • 24
  • 2022/2023
  • Exam (elaborations)
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Every Topic on the Edexcel
2022 Advanced Information
Practice Booklet
Paper 2 (Calculator)

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, Answer ALL questions.
Write your answers in the spaces provided.
You must write down all the stages of your working.

1. a) 6.4 has been rounded to one decimal place.
Write down the error interval.


………….. ≤ x < …………..
(2 marks)
b) 6.4 has been truncated to one decimal place.
Write down the error interval.
………….. ≤ x < …………..
(2 marks)


3 4.3 ×𝑡𝑎𝑛39𝑜
2. a) Work out √
23.4−6.06

Write down all the digits on your calculator display.


…………………………………………..
(2 marks)
b) Round your answer to part (a) to 2 decimal places.


………………………..
(1 mark)


30𝑥 2 𝑦 3
3. a) Simplify
6𝑥𝑦 2




………………………..
(2 marks)
b) Simplify (2𝑥 2 𝑦)3



………………………..
(2 marks)

www.thegcsemathstutor.co.uk

, 4. a) Expand 𝑏(3𝑏 + 7)


………………………..
(1 mark)
b) Expand 3𝑦(5 − 4𝑦)


………………………..
(2 marks)


5. Expand and Simplify 3(5𝑥 + 4) − 2(3𝑥 − 2)




………………………..
(3 marks)


6. a) Expand and Simplify (𝑥 + 3)(𝑥 − 5)




………………..……………………..
(1 mark)

b) Expand and Simplify (2𝑥 − 3)(3𝑥 − 4)




………………..……………………..
(2 marks)




www.thegcsemathstutor.co.uk

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