0580/13 May/Jun 2025, Question 1: Understanding Decimal Place Value

Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Non-calculator · 4 marks

The question, in short

Answer three short number questions: express 70 000 000 in words, give the value of the digit 5 in 0.25 as a fraction, and find the reciprocal of 0.25.

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

Part (a) · 1 mark

Write 70 000 000 in words.

170 000 000 = seventy million

AnswerSeventy million(s)

Part (bi) · 1 mark

State the value of the 5 in 0.25 as a fraction.

1In 0.25 the 5 is in the hundredths column
2Value = 5/100 = 1/20

Answer5/100 or 1/20

Part (bii) · 2 marks

Calculate the reciprocal of 0.25.

1Reciprocal = 1 ÷ 0.25
2= 1 ÷ 1/4 = 4

Answer4

Stuck on a step? Read the free lesson: Understanding Decimal Place Value

Practise more understanding decimal place value questions

Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.

Practise free on Lemmara