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Rational Numbers
Name _______________________
I can classify a number as rational or irrational.
Determine if the following numbers are rational or irrational.
2
1. 5
2. -15
3.
4. 7.9125618…
5. -1.59
6. π
7. 4.57
8.
10. 0
11. 3
13. 5.121121112…
14.
16. -7.234
17. 5 + 3
5
15
16
16
18. Which of the following is an irrational number.
A. π
B. 5
C. 6.07
D.
14
2
5
9. 18.256
12. 5 7
15.
20
19. Which of the following is a rational number?
A. 1.212112111…
B. 2.468101214…
C. 7.45454545…
D. 1.123581321…
20. Which of the following is an irrational number?
A.
36
B.
49
C.
144
D.
300
21. Which of the following is an irrational number?
A.
5
B. 9
C. -1
3
D. 7
22. Which real number is not rational?
A. -3
B. 0.3
C. 3
D. 3
23. Classify 1.88 as irrational or rational. Justify your classification.
Challenge
24. A student wrote that
2
is a rational number because it can be written as a
2
fraction. Is the student correct? Explain why or why not?
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