Notes

When we play games with computers we play by running, jumping and or finding secret things. Well, with Algebra we play with letters, numbers and symbols. And we also get to find secret things. Once we learn some of the…

Exponents Exponents tell how many times to use a number itself in multiplication. There are different laws that guides in calculations involving exponents. In this chapter we are going to see how these laws are used. Indication of power, base…

Perimeters of Triangles and Quadrilaterals Find the perimeters of triangles and quadrilaterals Perimeter – is defined as the total length of a closed shape. It is obtained by adding the lengths of the sides inclosing the shape. Perimeter can be…

Coordinates of a Point Read the coordinates of a point Coordinates of a points – are the values of ? and ? enclosed by the bracket which are used to describe the position of a point in the plane The…

Ratio A ratio – is a way of comparing quantities measured in the same units Examples of ratios NOTE: Ratios can be simplified like fractions A Ratio in its Simplest Form Express a ratio in its simplest form Example 1 Simplify…

Rational Numbers A Rational Number Define a rational number A Rational Number is a real number that can be written as a simple fraction (i.e. as a ratio). Most numbers we use in everyday life are Rational Numbers. Number As a Fraction Rational?…

An algebraic expression – is a collection of numbers, variables, operators and grouping symbols. Variables – are letters used to represent one or more numbers

Points and Lines The Concept of a Point Explain the concept of a point A point – is a smallest geometric figure which gives a position of object in a plane A line segment – is a straight line joining two points…

Measurements can be rounded to a certain number of significant figures. Approximation- is a process of rounding numbers to a certain degree of accuracy. A number can be rounded to a certain required place value such as to the nearest…

A unit – is defined as a symbol or sign which is assigned to a number to describe a kind of measurement made