Recognizing Rational & Irrational Numbers (Grade 8)

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Recognizing Rational & Irrational Numbers

1. 
[math]sqrt5[/math] is a rational number.
  1. True
  2. False
 
2. 
[math]sqrt9/sqrt16[/math] is a rational number.
  1. True
  2. False
3. 
[math]2sqrt3/3[/math] is a rational number.
  1. True
  2. False
 
4. 
[math]sqrt5/4[/math] is a rational number.
  1. True
  2. False
5. 
[math]sqrt12/sqrt18[/math] is a rational number.
  1. True
  2. False
 
6. 
[math]9/sqrt25[/math] is a rational number.
  1. True
  2. False
7. 
[math]pi[/math] is a rational number.
  1. True
  2. False
 
8. 
[math]2/3[/math] is a rational number.
  1. True
  2. False
9. 
Which of these numbers is irrational?
  1. [math]3/4[/math]
  2. [math]sqrt23/7[/math]
  3. [math]13/45[/math]
  4. [math]63/32[/math]
 
10. 
Which of these numbers is irrational?
  1. [math]sqrt324[/math]
  2. [math]sqrt289[/math]
  3. [math]sqrt199[/math]
  4. [math]sqrt25[/math]
11. 
Which of these numbers is rational?
  1. [math]sqrt29[/math]
  2. [math]sqrt3/4[/math]
  3. [math]sqrt81[/math]
  4. [math]sqrt99[/math]
 
12. 
Which of these numbers is irrational?
  1. [math]sqrt16[/math]
  2. [math]sqrt99[/math]
  3. [math]13/4[/math]
  4. [math]sqrt225[/math]
13. 
Which of these numbers is rational?
  1. [math]sqrt29/sqrt17[/math]
  2. [math]sqrt9/sqrt25[/math]
  3. [math]sqrt13[/math]
  4. [math]sqrt63/sqrt9[/math]
 
14. 
Which of these numbers is irrational?
  1. [math]sqrt73[/math]
  2. [math]sqrt16[/math]
  3. [math]sqrt169[/math]
  4. [math]sqrt225[/math]
15. 
Which of these numbers is irrational?
  1. [math]sqrt49[/math]
  2. [math]16/3[/math]
  3. [math]24/3[/math]
  4. [math]sqrt5[/math]
 
16. 
Which of these numbers is irrational?
  1. [math]sqrt13[/math]
  2. [math]1/13[/math]
  3. [math]13/1[/math]
  4. [math]13/9[/math]
17. 
Which of these numbers is irrational?
  1. [math]sqrt29[/math]
  2. [math]25[/math]
  3. [math]13[/math]
  4. [math]7[/math]
 
18. 
Which of these numbers is irrational?
  1. [math]sqrt36[/math]
  2. [math]-17/5[/math]
  3. [math]sqrt9[/math]
  4. [math]sqrt99[/math]
19. 
Which of these numbers is not irrational?
  1. [math]sqrt29[/math]
  2. [math]sqrt15[/math]
  3. [math]sqrt43[/math]
  4. [math]7/sqrt4[/math]
 
20. 
Choose the number that is rational.
  1. [math]sqrt98[/math]
  2. [math]sqrt66[/math]
  3. [math]sqrt79[/math]
  4. [math]sqrt1024[/math]

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