Exponential Expression If a is a real number and n is a natural number, an = a .a .a ……a, n factors of a where n is the exponent,…

# Month: May 2014

## Divide real numbers

Divide real numbers The result of dividing one number by another is called the quotient. For example, when 45 is divided by 3, the quotient is 15. To define…

## Find the reciprocal of a number

Find the reciprocal of a number Earlier, subtraction was defined in terms of addition. Now, division is defined in terms of multiplication. The definition of division depends on the…

## Multiply real numbers

Multiply real numbers The answer to a multiplication problem is called the product. For example, 24 is the product of 8 and 3. The rules for finding signs of products…

## Subtract real numbers

Subtract real numbers Recall that the answer to a subtraction problem is called the difference. Thus, the difference between 6 and 4 is 2. To see how subtraction should…

## Adding Real Numbers

Adding Real Numbers Like signs :- To add two numbers with the same sign, add their absolute values. The sign of the answer (either + or -) is the same…

## Use inequality symbols

Use inequality symbols The statement 4 + 2 = 6 is an equation; it states that two quantities are equal. The statement 4 ≠ 6 (read “4 is not…

## Use absolute value.

Use absolute value. Geometrically, the absolute value of a number a, written 0 a 0, is the distance on the number line from 0 to a. For example, the…

## Additive Inverse

Additive Inverse For any real number a, the number 2a is the additive inverse of a. Change the sign of a number to get its additive inverse. The sum of…

## Sets of Numbers

Sets of Numbers Natural numbers or counting numbers {1, 2, 3, 4, 5, 6, . . . } Whole numbers {0, 1, 2, 3, 4, 5, 6,…

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