1 / 6

REVIEW OF OPERATIONS ON SIGNED NUMBERS

REVIEW OF OPERATIONS ON SIGNED NUMBERS. I. ADDITION Do the numbers have the SAME SIGN? YES - Same Signs: No- Diff Signs Find the SUM: Find DIFFERENCE : (-3) + ( -6 ) = ( - 9) (+5) + ( -7 ) = ( - 2)

amalie
Télécharger la présentation

REVIEW OF OPERATIONS ON SIGNED NUMBERS

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. REVIEW OF OPERATIONS ON SIGNED NUMBERS I. ADDITION Do the numbers have the SAME SIGN? YES - Same Signs:No- Diff Signs Find the SUM:Find DIFFERENCE:(-3) + (-6) = (-9) (+5) + (-7) = (-2) (+4) + (+5) = (+9)   (-4) + (+6) = (+2) Keep the sign on the 2 numbersKeep the sign of LARGER #

  2. ADDITION EXAMPLES 1.) 7 + (-11) = 2.) (-12) + (-13) + (-10) = 3.) -4 + 13 = 4.) -4 + (-13) = 5.) + = 6.) 3.1 + (-4.02) =

  3. II. SUBTRACTION First, make all minus (negatives) into adding (positives). Then either: 1.) Make the subtraction problem into an addition problem. Then follow addition rules, or 2.) Assume all subtraction signs as negatives and use addition rules.

  4. SUBTRACTION EXAMPLES 1.) 6 - 17 = 2.) 6 - 17 = 3.) -6 - 17 = 4.) -6 - (-17) = 5.) -3 + 5 – 12 – (-12) – 17 + 4 – (-8) =

  5. MULTIPLICATION and DIVISION First, DO the multiplication or division. Then determine the sign: Count the number of negative signs.... Are there an EVEN number of negative signs? • YES (an EVEN number of negative signs) the answer is POSITIVE • NO (an ODD number of negative signs) the answer is NEGATIVE

  6. MULTIPLICATION EXAMPLES 1.) (6) (-7) = 2.) (-12)(-10) = 3.) (-1/5)(-25) = 4.) (-4.1)(6) = 5.) (-0.002)(-1.22) = 6.) (-2)(-3)(2)(-1)(-10)(-1/2) = 7.) -42 ÷ (-14) = 8.) = 9.) = 10.) = http://amby.com/educate/math/integ_x1.html

More Related