Number — IGCSE Mathematics (0980) questions by topic
Working out combined costs from a price per kilogram and a per-item price, compound interest over 5 years, square roots, and currency conversion to two decimal places make up this number page's 36 questions, drawn from 2025 papers and worth between 1 and 10 marks. Find, calculate, express, complete and work out dominate, so every line of arithmetic needs to be exact.
Practise these calculations in short bursts and submit each answer for instant marking, so a misplaced decimal point in a currency conversion or an incorrectly compounded interest figure is caught immediately rather than costing marks silently across several questions.
May–June 2025, Paper 12
Write the number sixteen thousand and sixty-two in figures.
Answer this question and get it marked →Complete this statement. 10 weeks is ............... days.
Answer this question and get it marked →The diagram shows a rectangle drawn on a square grid, 7 squares wide and 5 squares high (35 unit squares in total). Shade 2/5 of the rectangle.
Answer this question and get it marked →Find the value of the reciprocal of 1/3.
Answer this question and get it marked →Put one pair of brackets into the calculation to make it correct. -12 + 4 / 2 - 3 = -16
Answer this question and get it marked →Write these fractions in order, starting with the smallest. 5/8 11/12 2/3 3/4 13/24 ............... < ............... < ............... < ............... < ...............…
Answer this question and get it marked →Tim has a method for multiplying a number by 99. He shows his method for 53 x 99. 53 x 99 = 53 x 100 - 53 = 5300 - 53 = 5247 Work out 85 x 99 using Tim's method.
Answer this question and get it marked →By writing each number in the calculation correct to 1 significant figure, find an estimate for the value of (17.8 + 10.3) / 5.5 .
Answer this question and get it marked →Find the highest common factor (HCF) of 66 and 110.
Answer this question and get it marked →P is a prime number. Write down the value of P that satisfies the inequality 13 < P < 19.
Answer this question and get it marked →The Venn diagram shows two overlapping sets J and K inside a universal set E (rectangle). Both circles J and K, including their overlap, are entirely shaded. Use set notation to…
Answer this question and get it marked →Work out 2 7/9 x 1 1/5. Give your answer as a mixed number in its simplest form.
Answer this question and get it marked →The mass, m kg, of a stone is 3.2 kg, correct to the nearest 100 g. Complete this statement about the value of m. ............... <= m < ...............
Answer this question and get it marked →May–June 2025, Paper 22
Find the highest common factor (HCF) of 36 and 54.
Answer this question and get it marked →Write the recurring decimal 0.25(5) (i.e. 0.25 with the 5 recurring, = 0.2555...) as a fraction.
Answer this question and get it marked →Rationalise the denominator of 9/sqrt(3). Give your answer in its simplest form.
Answer this question and get it marked →Write as a single fraction in its simplest form. (5a/6) x (3b/a)
Answer this question and get it marked →May–June 2025, Paper 32
Apples cost $1.20 per kilogram and one banana costs 35 cents. Work out the total cost, in dollars, of 3 kg of apples and 7 bananas.
Answer this question and get it marked →A student scores 58 out of 80 in a test. Calculate their percentage score.
Answer this question and get it marked →The exchange rate is $1 = 0.923 euros. Calculate the difference between 750 euros and $846. Give your answer in euros correct to 2 decimal places.
Answer this question and get it marked →Sam spends $187 on electricity and gas. The ratio electricity : gas = 8 : 3. Work out how much Sam spends on electricity.
Answer this question and get it marked →Rick invests $6000 for 5 years at a rate of 9% per year compound interest. Calculate the total interest earned during the 5 years.
Answer this question and get it marked →Write 0.000 000 0347 in standard form.
Answer this question and get it marked →May–June 2025, Paper 42
Mass of box A : Mass of box B = 4 : 7 The mass of box B is 2.4 kg more than the mass of box A. Calculate the mass of box A and the mass of box B.
Answer this question and get it marked →Scott changes $300 into pounds (£). The exchange rate is £1 = $1.20 . Calculate the amount Scott receives.
Answer this question and get it marked →In a sale, the original price of a shirt is reduced by 15%. The sale price of the shirt is $23.63 . Find the original price of the shirt.
Answer this question and get it marked →The length of a rectangle is 16 cm, correct to the nearest centimetre. The width of the rectangle is 14 cm, correct to the nearest centimetre. Calculate the lower bound of the…
Answer this question and get it marked →Alex invests $400 at a rate of 2.3% per year simple interest. Find the total amount Alex has at the end of 5 years.
Answer this question and get it marked →Other IGCSE Mathematics topics
- Algebra and graphs (21)
- Geometry (14)
- Mensuration (7)