Algebraic Expressions (Foundation)

Interactive macro-enabled MS-Excel spreadsheet. Contents: Write expressions using letter symbols to represent unknowns. Simplify linear or non-linear expressions by collecting like terms. Simplify expressions by writing them without multiplication signs. Simplify division expressions by cancelling all common factors. Expand expressions by multiplying a single term over a bracket. Multiply out the sum or difference of two brackets & simplify. Complete the cells of an algebraic pyramid by adding expressions. Factorise by taking out a single-term highest common factor HCF. Expand the product of two or three linear expressions & simplify. Multiply & divide expressions with integer powers using index laws. Factorise quadratic expressions to (x ± a)(x ± b) or (ax ± b)(cx ± d). Factorise quadratic expressions to (x ± a)² or (ax ± b)². Factorise using the difference of two squares a² − b² = (a + b)(a − b).