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أدلة الدراسة > Prealgebra

Summary: Identifying and Writing Integers

 

Key Concepts

  • Opposite Notation
    • a-a means the opposite of the number aa
    • The notation a-a is read the opposite of aa.
  • Absolute Value Notation
    • The absolute value of a number nn is written as n|n| .
    • n0|n|\ge 0 for all numbers.

Glossary

absolute value
The absolute value of a number is its distance from 0 on the number line.
integers
Integers are counting numbers, their opposites, and zero ... 3,2,1,0,1,2,3–3, –2, –1, 0, 1, 2, 3\dots
negative number
A negative number is less than zero.
opposites
The opposite of a number is the number that is the same distance from zero on the number line, but on the opposite side of zero.
 

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