Algebraic Expression Diagnostic Test Subtopic  Percentage of Correct Answers 
Development of Algebraic Expression: 

Determining the development of the product for an expression with a term  86.9% 
Determining the development of the product of two expressions  76.1% 
Algebraic Expressions Factorisation: 

Converting algebraic expressions that contain two terms to a product of one pronunciation with one expression  74.6% 
Converting algebraic expressions that contain two terms to the product of two expressions  72.4% 
Converting algebraic expressions that contain three terms to the product of two expressions  66.2% 