Pre Algebra

PRIME FACTORISATIONPrime factorisation is the process by which a composite number is rewritten as the product of prime factors. Example 1: Find out the prime factorisation of 30. First we will see whether the given number is divisible by a…

Absolute Value EquationsTo solve an absolute value equation, isolate the absolute value on one side of the equal sign, and establish two cases:Case 1:|a| = b set a = b Set the expression inside the absolute value symbol equal to the other…

Absolute Value EquationsTo solve an absolute value equation, isolate the absolute value on one side of the equal sign, and establish two cases:Case 1:|a| = b set a = b Set the expression inside the absolute value symbol equal to the other…

What Is Irrational NumberA number is irrational if and only if its decimal representation is non-terminating and non-repeating. e.g.√2, √3, π ……………. etc. Rational number and irrational number taken together form the set of real numbers.If…

What Is Irrational NumberA number is irrational if and only if its decimal representation is non-terminating and non-repeating. e.g.√2, √3, π ……………. etc. Rational number and irrational number taken together form the set of real numbers.If…

What is Comparing and Ordering of FractionsComparison of fractions are divided into three categories.1. Fraction with the same numeratorLet us consider the following fractions with the same numerator: (frac{1}{3}), (frac{1}{2}),…

What is an Equivalent FractionEquivalent FractionTo understand the concept of equivalent fractions, let us take an example – Rama gave four cakes to his four children. The first child cut his cake into two equal halves and ate the first…

Addition and Subtraction of DecimalsFor addition/subtraction of decimals, we have to follow these steps:Step 1: Change the given decimals into like decimals. Step 2: Write the numbers in columns, so that decimal points should come in one…

How do you Convert Unlike Decimals into Like DecimalsLike decimals: Decimals with the same number of decimal places are called like decimals. Examples: 0.6, 3.5, 6.1 ( one decimal place) 2.15,0.78,26.11 (two decimal places)Unlike decimals:…

What is the Definition of an Equivalent DecimalEquivalent DecimalsDecimals are a type of fractional number. The decimal 0.2 represents the fraction (frac{2}{10}). We know (frac{2}{10}) is equivalent to (frac{1}{5}), since (frac{1}{5}) times…