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4MA1/1F Jan 2023, Question 4: Introduction to Percentages

Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1F (Foundation) · Calculator · 5 marks

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The question, in short

Five short decimal questions: convert to a percentage, identify a digit's value, order decimals, round to 2 decimal places, and find a square root.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 1 mark

Convert 0.8 into a percentage.

  1. 10.8 × 100 = 80

Answer80

Part (b) · 1 mark

State the value of the digit 3 in 4.7634.

  1. 1The digit 3 is in the thousandths place, so its value is 3/1000 or 0.003
  2. 2This is the thousandth part

Answerthousandth

Part (c) · 1 mark

Arrange 0.204, 0.24, 0.04, 0.2, 0.042 from smallest to largest.

  1. 1Compare the decimals place by place
  2. 20.04 = 0.040
  3. 30.042 = 0.042
  4. 40.2 = 0.200
  5. 50.204 = 0.204
  6. 60.24 = 0.240
  7. 7Order: 0.04, 0.042, 0.2, 0.204, 0.24

Answer0.04 0.042 0.2 0.204 0.24

Part (d) · 1 mark

Round 25.786 21 to 2 decimal places.

  1. 1Look at the third decimal place of 25.786
  2. 2The digit is 6, which is ≥ 5, so round up the second decimal place
  3. 38 becomes 9
  4. 425.786 → 25.79

Answer25.79

Part (e) · 1 mark

Calculate the square root of 1296.

  1. 1Find √1296
  2. 236 × 36 = 1296
  3. 3√1296 = 36

Answer36

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