comparisons hold up the ‘+’ card if you think the answer is always positive. hold up the ‘-’...
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![Page 1: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/1.jpg)
Comparisons
• Hold up the ‘+’ card if you think the answer is always positive.
• Hold up the ‘-’ card if you think the answer is always negative.
The ?? Card
• Hold up the ‘??’ card if you cannot tell based on the given information (cannot be determined).
![Page 2: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/2.jpg)
a = -2 b = 4
a + b
![Page 3: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/3.jpg)
a = -2 b = 4
a - b
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a = -2 b = 4
a + -b
![Page 5: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/5.jpg)
a = -2 b = 4
-a + b
![Page 6: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/6.jpg)
a = -2 b = 4
ab
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a = -2 b = 4
|ab|
![Page 8: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/8.jpg)
a = -2 b = 4
-(-(-a))
![Page 9: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/9.jpg)
a = -2 b = 4
-(-(-b))
![Page 10: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/10.jpg)
a = -2 b = 4
-ab
![Page 11: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/11.jpg)
a = -2 b = 4
-(ab)
![Page 12: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/12.jpg)
a = -2 b = 4
-(a+b)
![Page 13: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/13.jpg)
a = -2 b = 4
-(a-b)
![Page 14: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/14.jpg)
a = -2 b = 4
-(a- -b)
![Page 15: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/15.jpg)
a = -2 b = 4
ab
![Page 16: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/16.jpg)
a = -2 b = 4
-a b
![Page 17: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/17.jpg)
a = -2 b = 4
-(a/b)
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x + y
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x - y
![Page 20: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/20.jpg)
xy
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x y
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|x + y|
![Page 23: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/23.jpg)
|xy|
![Page 24: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/24.jpg)
-|x + y|
![Page 25: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/25.jpg)
-(x + y)
![Page 26: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/26.jpg)
-x
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-(-(-y))
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-(x – y)
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x2
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x3
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-(x2)
![Page 32: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/32.jpg)
-4y
![Page 33: Comparisons Hold up the ‘+’ card if you think the answer is always positive. Hold up the ‘-’ card if you think the answer is always negative. The ?? Card](https://reader035.vdocuments.us/reader035/viewer/2022062517/56649ed55503460f94be5ce3/html5/thumbnails/33.jpg)
3x