Printable · GCSE Foundation · ages 14-16
Substitution into formulae worksheet — GCSE Foundation
Fifteen questions on "substitution into formulae" — DfE statement A2. Print it, or print three versions so neighbours cannot copy by letter; the key gives the letter for each version.
Substitution into formulae worksheet — GCSE Foundation
MathsUKwww.geekhero.co.uk
- 1.Work out the value of 3n − 2 when n = 1
- 2.A rectangle is x cm wide and twice as long as it is wide, so its area A cm² is given by A = 2x². Work out A when x = 3.
- 3.A taxi fare in pounds is given by F = 2.50 + 1.20m, where m is the number of miles travelled. Sam takes a taxi for a journey of 6 miles. Work out the fare.
- 4.Work out the value of m² + 3m when m = −2
- 5.Work out the value of n² − n when n = −3
- 6.On Monday, a runner covers 15 km in 2.5 hours. On Tuesday, she covers 12 km in 1.5 hours. Using the formula speed = distance ÷ time, work out on which day she ran faster, and by how much.
- 7.Work out the value of 5m² + 3m when m = −2.4
- 8.Work out the value of 2(x + 2) when x = −5
- 9.Work out the value of 3b − 4 when b = 6
- 10.Work out the value of (x − 4)/2 + 3 when x = 10
- 11.Work out the value of 5y + 9 when y = 0
- 12.Grace says that 2(x + 1) and 2x + 2 always have the same value. Work out the value of both expressions when x = 3.
- 13.The braking distance of a car, in metres, is estimated using the formula d = 0.4v² + 6, where v is the speed in mph. A car travelling at 35 mph brakes. Work out the estimated braking distance.
- 14.The formula connecting speed, distance and time is v = s ÷ t. Work out v, in km/h, when s = 180 and t = 4.
- 15.The formula y = x² + 1 gives y in terms of x. Work out the value of y when x = −2.y = x² + 1
Build your own mix at the worksheet builder.