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INTEGERS.ppt
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- 2. UNIT ESSENTIAL QUESTIONS •What areintegers? •When do we work with integers in the real world? •What situations can be represented with integers? •How do we add and subtract integers?
- 3. KEY VOCABULARY •Integers •Positive Integers •Negative Integers •Opposites •Absolutevalue •Additive Inverse Property
- 4. INTEGERS •Whole numbers andtheir opposites are integers such as 6 and -6. •Zero is not positive or negative but is an integer. 0 6 -6 Opposites What do you notice about the opposite pairs?
- 5. Positive number –a number greater than zero. 0 1 2 3 4 5 6
- 6. Negative number- a numberless than zero. 0 1 2 3 4 5 6 -1 -2 -3 -4 -5 -6
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- 10. Examples of wordsthat can be used to represent positive and negative situations. Can you think of other words used in real life to represent a positive or negative situation?
- 12. THE INTEGER TO THERIGHT ON THE NUMBER LINE IS ALWAYS LARGER. -2 > -17 Comparing itegers Greater than 0 < 22 Less than -247 > -400 Greater than
- 15. OPPOSITE NUMBERS numbers that arethe same distance from zero in the opposite direction 0 1 2 3 4 5 6 -1 -2 -3 -4 -5 -6 What is the opposite of 0?
- 16. 0 6 -6 Opposites What doyou notice about the location of the opposite pair of integers?
- 17. ABSOLUTE VALUE The distance anumber is from zero on the number line. Absolute value is always positive. The symbol for absolute value is -4 Absolute value does not equal opposite. 4
- 19. QUESTION? If |x| =3, what is the value of x?
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