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Number Lines and Rational Numbers

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Number Lines and Rational Numbers Answer Key

1. 
Sam plots -(-4) on the number line. What number(s) should he plot?
Number Line -5 to 5
  1. 0
  2. -4
  3. 4
  4. -4 and 4
2. 
To plot the point -(-8) on the number line, the line would need to be extended                 more points to the                .
Number Line -5 to 5
  1. 3, right
  2. 3, left
  3. 8, right
  4. 8, left
3. 
If the opposite of 2 was plotted on the number line, which number point(s) would be marked?
Number Line -5 to 5
  1. 2
  2. -2
  3. -(-2)
  4. -2 and -(-2)
4. 
Camden plots the opposite of -1 on the number line. What number(s) should be marked?
Number Line -5 to 5
  1. 0
  2. 1
  3. -1
  4. -1 and 1
5. 
Which of the following numbers could be plotted on the number line?
Number Line -5 to 5
  1. [math]-(- 29/4)[/math]
  2. [math]31/5[/math]
  3. [math]13/2[/math]
  4. [math]-(- 9/2)[/math]
6. 
Plot the number 5 and its opposite on the number line.
Number Line -5 to 5
  • 5 and -5 should be plotted
7. 
Plot the number [math]-2[/math] and its opposite on the number line.
Number Line -5 to 5
  • -2 and 2 should be plotted
8. 
Graph the following set of numbers on the number line:

{integers less than 4 but greater than or equal to -3}
Number Line -5 to 5
  • -3, -2, -1, 0, 1, 2, 3 should be marked
9. 
Write the number 0 on the center of the number line. Determine a scale that will allow you to plot 9 and its opposite on the number line. Write the value of each mark and plot the two points.
Number Line
  • Answers may vary. For example:
    -15, -12, -9, -6, -3, 0, 3, 6, 9, 12, 15 with 9 and -9 plotted.
10. 
Label the marks on the number line using 0.5 as the interval. The number line should range from -2.5 to 2.5.
Number Line
  • Number line should be labeled:

    -2.5, -2.0, -1.5, -1.0, -0.5, 0, 0.5, 1.0, 1.5, 2.0, 2.5

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