After going through the chapter the student will be able to do the following :

•  Describe the number line 
•  Identify the rational and irrational numbers amongst the real numbers.
• Represent the rational and irrational numbers on number line
• To describe the decimal representation of rational and irrational numbers.
• State and apply the laws of radicals.
• Carry out algebraic operations like addition and subtraction on radicals
• Carry out the multiplication and division of two radicals
• Solve sums involving the rationalisation of real numbers.