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This printable supports Common Core Mathematics Standard 8.NS.A.1

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# Recognizing Rational & Irrational Numbers (Grade 8)

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## Recognizing Rational & Irrational Numbers

1.
$sqrt5$ is a rational number.
1. True
2. False

2.
$sqrt9/sqrt16$ is a rational number.
1. True
2. False
3.
$2sqrt3/3$ is a rational number.
1. True
2. False

4.
$sqrt5/4$ is a rational number.
1. True
2. False
5.
$sqrt12/sqrt18$ is a rational number.
1. True
2. False

6.
$9/sqrt25$ is a rational number.
1. True
2. False
7.
$pi$ is a rational number.
1. True
2. False

8.
$2/3$ is a rational number.
1. True
2. False
9.
Which of these numbers is irrational?
1. $3/4$
2. $sqrt23/7$
3. $13/45$
4. $63/32$

10.
Which of these numbers is irrational?
1. $sqrt324$
2. $sqrt289$
3. $sqrt199$
4. $sqrt25$
11.
Which of these numbers is rational?
1. $sqrt29$
2. $sqrt3/4$
3. $sqrt81$
4. $sqrt99$

12.
Which of these numbers is irrational?
1. $sqrt16$
2. $sqrt99$
3. $13/4$
4. $sqrt225$
13.
Which of these numbers is rational?
1. $sqrt29/sqrt17$
2. $sqrt9/sqrt25$
3. $sqrt13$
4. $sqrt63/sqrt9$

14.
Which of these numbers is irrational?
1. $sqrt73$
2. $sqrt16$
3. $sqrt169$
4. $sqrt225$
15.
Which of these numbers is irrational?
1. $sqrt49$
2. $16/3$
3. $24/3$
4. $sqrt5$

16.
Which of these numbers is irrational?
1. $sqrt13$
2. $1/13$
3. $13/1$
4. $13/9$
17.
Which of these numbers is irrational?
1. $sqrt29$
2. $25$
3. $13$
4. $7$

18.
Which of these numbers is irrational?
1. $sqrt36$
2. $-17/5$
3. $sqrt9$
4. $sqrt99$
19.
Which of these numbers is not irrational?
1. $sqrt29$
2. $sqrt15$
3. $sqrt43$
4. $7/sqrt4$

20.
Choose the number that is rational.
1. $sqrt98$
2. $sqrt66$
3. $sqrt79$
4. $sqrt1024$
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