Whole number.

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Presentation transcript:

Whole number

A whole number that can be positive, negative, or zero A whole number that can be positive, negative, or zero. (not a fractional number)

On a number line, numbers to the left of zero are all negative numbers. Examples of Negative Number The following are few examples of negative numbers. - 4, - 2,-10

(Positive means more than zero. Zero is neither negative nor positive (Positive means more than zero. Zero is neither negative nor positive.) A negative number is written with a minus sign in front Example: −5 is negative five. Negative is sometimes abbreviated "−ve"

INTEGERS

What is an integer? Positive and Negative whole numbers are called integers or directed numbers.

Ordering of Integers Positive no’s are arranged in ascending order Negative no’s are arranged in descending order.

Which is greater, -5 or -3? Which is greater, -5 or -3?

Q: Which of the following negative numbers is greater than - 10? Choices: A. - 9 B. - 11 C. - 12 D. - 13 Correct Answer: -9

-23, 17, -32, 2, -4, 0 Arrange these no’s -23, 17, -32, 2, -4, 0

Ans : -32 , -23 , -4 , 0 , 2 , 17

Which of these numbers is greater than -6 but less than 4? order starting with the least. -23, 17, -32, 2, -4, 0 order starting with the least. -23, 17, -32, 2, -4, 0 Which of these numbers is greater than -6 but less than 4? -8, -10, 5, -4, 0

Ans : -4 ,0

+2 + +9 = +11 +17 + +5 = +22 +29 + +16 = +45 Integers Sum Adding Positive Integers Integers Sum +2 + +9 = +11 +17 + +5 = +22 +29 + +16 = +45

Multiplying Two Integers Product (+8) (+4) = +32 (+11) (-2) = -22 (-14) (+3) = -42 (-9) (-5) = +45

Multiplying Three Integers Product of First Two Integers and the Third (+5) (+3) (+2) = (+15) (+2) = +30 (+8) (+2) (-5) = (+16) (-5) = -80 (-6) (+3) (+4) = (-18) (+4) = -72 (-9) (-3) (+2) = (+27) (+2) = +54 (-4) (-3) (-5) = (+12) (-5) = -60

If both the dividend and divisor are positive, the quotient will be positive. (+16) ÷ (+4) = +4 If both the dividend and divisor are negative, the quotient will be positive. (-16) ÷ (-4) = +4 If only one of the dividend or divisor is negative, the quotient will be negative. (+16) ÷ (-4) = -4 or (-16) ÷ (+4) = -4 In other words, if the signs are the same the quotient will be positive, if they are different, the quotient will be negative.

Only practice can make you perfect.