11.2 adding integers
DESCRIPTION
http://mrwilliams.edublogs.orgTRANSCRIPT
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11.2 Adding IntegersObjective: Add two integers.
Mr. Williams [email protected]
Image: 'Spiekermann House Numbers'www.flickr.com/photos/23806189@N00/2026818238
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VIDEO
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Drive summary Cardinals v. Rams Dec. 20th, 2007.1st Down James rushes for 2 yards.2nd Down Warner passes incomplete to Fitzgerald.3rd Down Warner passes to Bouldin for 16 yards.
How many yards did the Cardinals gain or lose on the drive?
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10 2 3 4 5 6 7 8 9 1012345678910
Third DownSecond DownFirst Down
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Image: 'Serial Dumpster'www.flickr.com/photos/17796222@N00/73485802
Absolute Value a numbers distance away from 0 on a number line.
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Adding Integers with the same sign
Add their absolute values and write their common sign.
3 + 5 = 8
3 + (5) = 8
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Adding Integers with the same sign
Image: 'IMG_3722'www.flickr.com/photos/31331368@N00/119188387
10 + (5) =
9 + (2) =
8 + 7 =
22 + 19 =
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Adding Integers with different signs
Subtract the lesser absolute value from the greater absolute value.
Write the sign of the number with the greatest absolute value.
Image: 'IMG_3722'www.flickr.com/photos/31331368@N00/119188387
7 + 10 = 3
7 + (10) = 3
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Adding Integers with different signs
Image: 'IMG_3722'www.flickr.com/photos/31331368@N00/119188387
8 + (15) =
25 + (25) =
5 + 2 =
27 + 18 =