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Understanding Integers and Absolute Value in Pre-Algebra

Learn about integers, absolute value, and their applications in mathematics. Understand how to interpret positive and negative numbers using examples and explanations. Discover how opposites in integers add up to zero.

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Understanding Integers and Absolute Value in Pre-Algebra

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  1. Integers & Absolute Value

  2. Integers & Absolute Value • The absolute value of a number is the distance the number is from zero on the number line. • Distance is always positive. Think of it like driving in a car. You can go North, South, East or West, but you can not go negative miles. BACK

  3. -4 -3 -2 -101 2 3 4 Integers & Absolute Value Absolute value is symbolized using two bars like this: BACK

  4. Examples BACK

  5. Examples BACK

  6. Words like: above, gain, increase or deposit mean positive integers. Thermometers are often used to explain positive and negative numbers. Words like: below, loss, decrease or withdraw mean negative integers

  7. Thermometers are often used to explain positive and negative numbers. Words like: above, gain, increase or deposit mean positive integers. Words like: below, loss, decrease or withdraw mean negative integers

  8. Opposites • In integers opposites add up to zero. • +25 + -25 = 0 • -7 + 7 = 0 • 101 + -101 = 0 BACK

  9. If an Integer has no sign, it is a positive number. BACK

  10. Integers & Absolute Value Pre-Algebra BACK

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