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Whole number.

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Presentation on theme: "Whole number."— Presentation transcript:

1 Whole number

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

3 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

4 (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"

5 INTEGERS

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

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

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

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

10 -23, 17, -32, 2, -4, 0 Arrange these no’s -23, 17, -32, 2, -4, 0

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

12 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

13 Ans : -4 ,0

14 +2 + +9 = +11 +17 + +5 = +22 +29 + +16 = +45 Integers Sum
Adding Positive Integers Integers Sum = +11 = +22 = +45

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

16 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

17 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.

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19 Only practice can make you perfect.


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