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.The formula y = x² + 1 gives y in terms of x. Work out the value of y when x = −2.y = x² + 1
- 2.Work out the value of n² − n when n = −3
- 3.Work out the value of 5a + 2 when a = 3
- 4.Grace says that 2(x + 1) and 2x + 2 always have the same value. Work out the value of both expressions when x = 3.
- 5.Work out the value of 3b − 4 when b = 6
- 6.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.
- 7.A recipe gives the cooking time, in minutes, for a chicken as T = 40m + 20, where m is the mass in kg. A chicken has a mass of 1.8 kg. Work out the cooking time in hours and minutes.
- 8.Work out the value of 2(x + 2) when x = −5
- 9.Work out the value of 3a − 2b when a = 5 and b = 4
- 10.Work out the value of (x − 4)/2 + 3 when x = 10
- 11.Work out the value of 3n − 2 when n = 1
- 12.Work out the value of 5y + 9 when y = 0
- 13.Work out the value of m² + 3m when m = −2
- 14.Work out the value of 2x² when x = −3
- 15.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.
Build your own mix at the worksheet builder.