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
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- 1.Work out the value of 5y + 9 when y = 0
- 2.Work out the value of 3b − 4 when b = 6
- 3.Work out the value of 3x² − 4x when x = −2.
- 4.Work out the value of 2x² when x = −3
- 5.Work out the value of n² − n when n = −3
- 6.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.
- 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 4p² − 3 when p = 2.5
- 9.The formula for the energy stored in a stretched spring is E = (1/2)kx², where E is in joules, k is the spring constant in N/m and x is the extension in m. A spring with a spring constant of 40 N/m is stretched so that its extension is 0.3 m. Work out the energy stored in the spring.
- 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.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.
- 13.Work out the value of 5a + 2 when a = 3
- 14.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.
- 15.Work out the value of 3a − 2b when a = 5 and b = 4
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