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.A formula is F = 4s. A pupil says that when s = 5 the value of F is 9, because they added 4 and 5 instead of multiplying. Work out the correct value of F when s = 5.
- 2.Work out the value of a² − 2b when a = −3 and b = 4.
- 3.Work out the value of 2(x + 2) when x = −5
- 4.Work out the value of n² − n when n = −3
- 5.The formula y = x² + 1 gives y in terms of x. Work out the value of y when x = −2.y = x² + 1
- 6.Work out the value of 5m² + 3m when m = −2.4
- 7.The formula connecting speed, distance and time is v = s ÷ t. Work out v, in km/h, when s = 180 and t = 4.
- 8.Work out the value of 3x² − 4x when x = −2.
- 9.The formula for converting a temperature in Fahrenheit, F, to Celsius, C, is C = 5(F − 32) ÷ 9. Work out C, to 1 decimal place, when F = 98.6.
- 10.Oliver has m stickers and gives 5 of them away. The number he has left is L = m − 5. Work out L when m = 8.
- 11.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.
- 12.Work out the value of 3b − 4 when b = 6
- 13.Work out the value of m² + 3m when m = −2
- 14.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.
- 15.Work out the value of 3a − 2b when a = 5 and b = 4
Build your own mix at the worksheet builder.