1 / 15

Integers

Integers. Integers are numbers that are on the number line where they can go below zero and become negatives. Going above the number line makes them positives. Neutral. There is only one number that is neutral and that is zero. It's because it doesn't go above or below t

kaloosh
Télécharger la présentation

Integers

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

    1. Integers Negatives and Positives by Sheldon Lee and Mrs. Gray

    2. Integers Integers are numbers that are on the number line where they can go below zero and become negatives. Going above the number line makes them positives

    3. Neutral There is only one number that is neutral and that is zero. It’s because it doesn’t go above or below the number line.

    4. Positives Positives numbers are the numbers that are on the right of zero on the number line. As they get more numbers they get bigger and bigger. They are represented by the + symbol or no symbol at all.

    5. Negatives Negative numbers are the numbers on the left of zero on the number line They are represented by the negative symbol (-)

    6. Adding Integers Movie Watch this movie to learn how to add integers.

    7. Adding If the integers have the same sign, add them and keep the sign 3 + 4 = 7 or -5 + -6 = -11 When the integers have different signs, find the difference and give the answer the larger number’s sign -3 + 2 = -1

    8. Subtracting Integers Movie Watch this movie to learn how to subtract integers.

    9. Subtracting In subtraction you change the operation to addition and change the sign of the second number. Then you apply the addition rules. 5 - 4 = 5 + (-4) = 1 5 - (-7) = 5 + (+7) = 12

    10. Multiplying Integers Watch this movie to learn how to multiply integers.

    11. Dividing Integers Watch this movie to learn how to divide integers.

    12. Multiplying and Dividing When multiplying integers you can use the love/hate analogy. If you love to love, that’s love. So, a positive times a positive is a positive. Or a positive divided by a positive is a positive. 9 • 9 = 81 or 45 ÷ 9 = 5 If you hate to hate, that’s hate. So, a negative times a negative is a positive. Or a negative divided by a negative is a positive. -4 •-3 = 12 or -15 ÷ -3 = 5

    13. Multiplying and Dividing continued If you love to hate, you hate. So, a positive times a negative is a negative. Or a positive divided by a negative is a negative. 5 • -6 = -30 or 25 ÷ -5 = -5 If you hate to love, you hate. So, a negative times a positive is a negative. Or a negative divided by a positive is a negative. -7 • 3 = -21 or -28 ÷ 4 = -7

    14. Multiplication and Division Another way to look at multiplication and division is: If you have an even number of negative signs, the answer will be positive. If you have an odd number of negative signs, the answer will be negative.

    15. Integer Practice Complete the following questions to practice adding, subtracting, multiplying and dividing integers.

More Related