Printable · GCSE Foundation · ages 14-16
Expressions, equations, formulae, identities and inequalities worksheet — GCSE Foundation
Fifteen questions on "expressions, equations, formulae, identities and inequalities" — DfE statement A3. Print it, or print three versions so neighbours cannot copy by letter; the key gives the letter for each version.
Expressions, equations, formulae, identities and inequalities worksheet — GCSE Foundation
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- 1.Which of these is a factor of 15x + 20?
- 2.Which of these is an inequality?
- 3.Which of these is a term, rather than a whole expression, an equation, or a formula?
- 4.Tom is asked to classify the statement 5(2x − 3) = 10x − 15. Which statement about it is correct?
- 5.Meera writes the statement 3(x + 4) = 3x + 12. Which of these correctly describes what she has written, with a reason?
- 6.A lift has a weight limit: it must carry no more than 630 kg. Let w be the total weight, in kg, carried by the lift. Which inequality describes this?
- 7.A statement contains an equals sign and one unknown letter, and it is only true for particular value(s) of that letter. What is this type of statement called?
- 8.A number, w, satisfies the statement "three times w, minus 5, is at least 16". Which of these is the correct inequality for w?
- 9.Which of these is a formula, rather than an expression, an equation, or an identity?
- 10.A plumber charges a £40 call-out fee plus £25 for each hour worked. The total charge, £C, for a job lasting h hours is given by C = 40 + 25h. Work out the charge for a job lasting 3 hours, and name what kind of statement C = 40 + 25h is.
- 11.Which of these is a formula?
- 12.Which of these statements is an equation with exactly one solution?
- 13.Which of these statements is an identity?
- 14.Which of these is an equation, rather than an expression, a formula or an identity?
- 15.Write down the coefficient of p in the expression 7 − 4p + 9q.
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