What is an Absolute value  Absolute value  The absolute value of a number is distance from zero on a number line. The distance from zero of a number, on a number line is called its Absolute value. Number line For example – The absolute value of 4 is -4 and the absolute value of -4 and […]

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Cube Root – Definition – Examples The Cube root of a number, is a number when multiply three times gives that number. Symbolic form of Cube Root is  ∛  ∛  is the radical symbol of root. The little threerepresents that it is cube root. The value of Index is 3, the Radicand is 8 and Radical symbol is […]

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Solve linear equations in one variable We will learn how to solve linear equations using mathematical operations, like addition, subtraction, multiplication and division.  Here are steps to solve a linear equation in one variable. When variables on both sides of the equations, then following steps are followed for solving the equations. Some examples are given […]

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Representation of numbers on Number Line Natural numbers Natural numbers : A set of counting numbers, is known as natural numbers. N = (1, 2, 3, 4, 5,…..) This is a number line for Natural Numbers. Whole numbers Whole numbers : When we add the number zero (0) to the natural numbers, we get whole numbers. W = […]

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Range – Definition – Examples – Formula – Statistics Definition: In statistics and mathematics, range is defined as the difference between the highest and lowest value in a set of data. Range Formula The formula for the range is the highest(maximum)value minus lowest(minimum) value in a data set. Range = Highest value – Lowest value […]

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                 Additive Inverse Definition: In mathematics, the additive inverse of a number is what we add to a number to create the sum of zero.  So in other words, we can say that the additive inverse of x is -x, which is equal and opposite in sign to it. […]

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 Important sets in Mathematics  1.  N = Set of all “Natural” numbers. 2.  W = Set of all “Whole” numbers. 3.  Q = Set of all “Rational” numbers. 4.   Z = Set of all “Integers”. 5.  R = Set of all “Real” numbers. 6.  Z +  = Set of “Positive” Integers. 7. Q + = Set of “Positive Rational” numbers. 8.  R +  = Set of “Real” numbers.

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         Rules – Addition of Integers There are two conditions when adding integers.  Rule 1: When integers have same sign. Rule 2: When integers have opposite sign. (a) When integers have same sign. (b) When integers have opposite sign. a. Integers having (same)positive sign. When we add two positive integers means both […]

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Negative Integers on Number Line A number line shows negative integers on the left side of the zero.   We understand the concept in a better way with the help of examples.  Example: Below number line represents integer -5 and -5 is a negative integer, so, -5 is left side of 0.  Similarly, -3 is a negative integer […]

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Addition and Subtraction of Integers on number Line Steps for addition and subtraction of integers on a number line are as follows. Step1: Draw a number line. Step 2:  For addition and subtraction, we clearly understand that, For a positive number, we have to move right from zero on the number line. For a negative […]

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