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Which of the following is NOT an integer?

Class 6IntegersIntegers
  • A−12
  • B0
  • C0.5
  • D47

Step-by-Step Solution

Integers are whole numbers and their negatives, including zero. 0.5 is a fraction (one half), so it is not an integer.
Answer: C) 0.5

Key idea: Comparing integers

On the number line, the integer on the **right** is the **larger** one. So 5 > 2, but also −2 > −5. This often surprises students: even though 5 is bigger than 2, **−5 is smaller than −2**, because −5 is further to the left. Any positive integer is larger than any negative integer, and zero sits between them.

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