Error Intervals Foundation GCSE Questions These questions are

Error Intervals – Foundation – GCSE Questions These questions are the same format as previous GCSE exams. COPY means they use the exact same numbers as the original GCSE question. Otherwise, they are clone questions using different numbers. The worksheets are provided in a variety of sizes.

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GCSE 1 Edexcel Foundation: June 2017 Paper 2, Q 23 A number, x, is rounded to 2 decimal places. The result is 3. 58. GCSE 1 Using inequalities, write down the error interval for x. A number, x, is rounded to 2 decimal places. The result is 3. 58. Using inequalities, write down the error interval for x. (Total for Question 1 is 2 marks) 2 A number, q, is rounded to 2 decimal places. The result is 5. 63. (Total for Question 1 is 2 marks) 2 Using inequalities, write down the error interval for q. A number, q, is rounded to 2 decimal places. The result is 5. 63. Using inequalities, write down the error interval for q. (Total for Question 2 is 2 marks) GCSE 1 Edexcel Foundation: June 2017 Paper 2, Q 23 A number, x, is rounded to 2 decimal places. The result is 3. 58. (Total for Question 2 is 2 marks) GCSE 1 Using inequalities, write down the error interval for x. A number, q, is rounded to 2 decimal places. The result is 5. 63. Using inequalities, write down the error interval for q. (Total for Question 2 is 2 marks) Edexcel Foundation: June 2017 Paper 2, Q 23 A number, x, is rounded to 2 decimal places. The result is 3. 58. Using inequalities, write down the error interval for x. (Total for Question 1 is 2 marks) 2 Edexcel Foundation: June 2017 Paper 2, Q 23 (Total for Question 1 is 2 marks) 2 A number, q, is rounded to 2 decimal places. The result is 5. 63. Using inequalities, write down the error interval for q. (Total for Question 2 is 2 marks)

GCSE 1 GCSE Edexcel Foundation: June 2017 Paper 3, Q 23 Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. £ (ii) Write down the greatest possible value of the house. £ by 5%. The value of David’s house increases 1 Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. £ (1) (ii) Write down the greatest possible value of the house. £ (1) by 5%. The value of David’s house increases His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. £ 1 £ by 5%. The value of David’s house increases 1 (1) His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. £ (2) (Total for Question 1 is 4 marks) GCSE Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. (ii) Write down the greatest possible value of the house. (1) £ (2) Edexcel Foundation: June 2017 Paper 3, Q 23 £ (1) His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. (Total for Question 1 is 4 marks) GCSE Edexcel Foundation: June 2017 Paper 3, Q 23 Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. £ (ii) Write down the greatest possible value of the house. £ by 5%. The value of David’s house increases (1) His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. (2) (Total for Question 1 is 4 marks) £ (2) (Total for Question 1 is 4 marks)

GCSE 1 Edexcel Foundation: November 2017 Paper 3, Q 23 (a) Find the value of the reciprocal of 1. 6 Give your answer as a decimal. (1) Jonah rounds a number, y, to one decimal place. The result is 9. 8 (b) Write down the error interval for y. (2) (Total for Question 1 is 3 marks)

GCSE 1 Edexcel Foundation: June 2017 Paper 3, Q 23 Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. £ (ii) Write down the greatest possible value of the house. £ by 5%. The value of David’s house increases (1) His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. £ (2) (Total for Question 1 is 4 marks)

GCSE 1 Edexcel Foundation: June 2017 Paper 2, Q 23 A number, x, is rounded to 2 decimal places. The result is 3. 58. Using inequalities, write down the error interval for x. 3. 575 – 3. 585 2 3. 575 ≤ x < 3. 585 (Total for Question 1 is 2 marks) A number, q, is rounded to 2 decimal places. The result is 5. 63. Using inequalities, write down the error interval for q. 5. 625 – 5. 635 5. 625 ≤ q < 5. 635 (Total for Question 2 is 2 marks)

GCSE 1 Edexcel Foundation: June 2017 Paper 3, Q 23 Anne’s house has a value of £ 220, 000 correct to 2 significant figures. (a) (i) Write down the least possible value of the house. £ 215, 000 £ 224, 999. 99 (ii) Write down the greatest possible value of the house. by 5%. The value of David’s house increases (1) His house then had a value of £ 315, 000 (b) Work out the value of David’s house before the increase. 5% 100% 105% = 315, 000 ÷ 105 1% = 3000 × 100% = 300, 000 £ 300, 000 (2) (Total for Question 1 is 4 marks)

GCSE 1 Edexcel Foundation: November 2017 Paper 3, Q 23 (a) Find the value of the reciprocal of 1. 6 Give your answer as a decimal. 0. 625 (1) Jonah rounds a number, y, to one decimal place. The result is 9. 8 (b) Write down the error interval for y. 9. 75 - 9. 8 – 9. 85 9. 75 ≤ 9. 8 < 9. 85 (2) (Total for Question 1 is 3 marks)

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