Math for Computer Science
2 | Negative numbers
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Examples
Practice Problems
Introduction
What are negative numbers?
- Any number less than zero is a negative number.
- All of the negative whole numbers, along with zero and all of the positive whole numbers, are known as integers.
- On a number line, numbers always increase (become "more positive") to the right and decrease (become "more negative") to the left.
Examples
Points on a number line
Q: Where is the blue dot on the number line?
A: Since numbers become "more negative" to the left on a number line, we can count back from zero to find that the blue dot is located at -3.
Distance between points
Q: What is the distance between -3 and 5?
A: Since -3 is 3 units from zero and 5 is 5 units from zero, the distance between -3 and 5 is a total of 8 units.
Practice | Negative Numbers
Click "Create Report" upon completion of any practice set to document your progress: Example