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GCSE A1 (Algebraic notation)
Use and interpret algebraic notation, including: ab in place of a × b; 3y in place of y + y + y and 3 × y; a2 in place of a × a, a3 in place of a × a × a, a2b in place of a × a × b; a/b in place of a ÷ b; coefficients written as fractions rather than decimals; brackets.