Number worksheet — GCSE Foundation

1.A cinema has 21 rows of seats with 29 seats in each row. Work out an estimate for the number of people the cinema can hold, by rounding each number to 1 significant figure.

2.Work out (−6) + (−4) × 3

3.A plumber charges a call-out fee of £45 and then £28 for each hour she works. She is at a house from 09:15 until 12:45. Work out the total charge.

4.Write 0.25 as a fraction in its simplest form.

5.Write 12 as a product of its prime factors.

6.The length of a nail is 12 cm, correct to the nearest centimetre. Using L for the length of the nail in centimetres, write down the error interval for L.

7.A photography studio offers 4 backdrops and 3 outfits for a portrait session. The plain grey backdrop, one of the 4 backdrops, cannot be used with the formal suit outfit, one of the 3 outfits. Work out how many different backdrop-and-outfit combinations are possible.

8.Work out 0.6 × 0.04.

9.At a bus station one bus leaves every 6 minutes and another leaves every 9 minutes. The two buses leave together at the start of the day. Work out how long it is until they next leave together.

10.Which of these numbers lies between −8 and −5 on a number line?

11.Write down the value of 7⁰

12.Write down the symbol that makes this statement true: 0.45 ___ 0.5

13.A box holds 140 pens. 25% of the pens are red. Work out how many of the pens are red.

14.Work out the highest common factor of 15 and 25.

15.Work out 3π − π, giving your answer as a multiple of π.