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 (x − 4)/2 + 3 when x = 10
- 2.The formula y = x² + 1 gives y in terms of x. Work out the value of y when x = −2.y = x² + 1
- 3.A person's body mass index is given by the formula B = m ÷ h², where m is the mass in kg and h is the height in metres. Work out B, to 1 decimal place, when m = 68 and h = 1.6.
- 4.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.
- 5.Work out the value of 2(x + 2) when x = −5
- 6.Work out the value of a² − 2b when a = −3 and b = 4.
- 7.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.
- 8.Work out the value of 2x² when x = −3
- 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.Work out the value of 3a − 2b when a = 5 and b = 4
- 11.Work out the value of 4p² − 3 when p = 2.5
- 12.Work out the value of 3x² − 4x when x = −2.
- 13.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.
- 14.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.
- 15.The volume of a cuboid is given by the formula V = lwh. Work out V, in cm³, when l = 2, w = 3 and h = 6.
Build your own mix at the worksheet builder.