Rational/Irrational Question Preview (ID: 60003)


Rational/Irrational Practice. TEACHERS: click here for quick copy question ID numbers.

Which statement is NOT true about rational numbers?
a) The product of two rational numbers is also a rational number.
b) The sum of two rational numbers is also a rational number.
c) 0 is not a rational number
d) The opposite of a rational number is also a rational number

Which choice is an irrational number?
a) - √ 16
b) √ 64
c) (4^3)
d) √ (36+4)

2 5/9 (Rational or Irrational Number)
a) Rational
b) Irrational
c)
d)

Order the rational numbers in descending order
a) 20, 12, 5, -21, -33
b) 20, -33, -21, 12, 5
c) 5, 12, 20, -21, -33,
d) -33, -21, 5, 12, 20

Which of the following is correctly written in scientific notation?
a) 12 x 10*2
b) .12 x 10*2
c) 1.2 x 10*2
d) 12 x 2*2

Which number is NOT a rational number?
a) -17.50
b) -15
c) 20/3
d) square root of 7

Which set contains only rational numbers?
a) √ 7 , 1 . 75 , 1/5 , 51
b) √ 5 , − 5 , 1/3 , 10 . 8
c) √ 3 , 4/5 , 13 . 58619 . . . , − 8
d) √ 4 , 2/3 , 6 . 875 , − 9

Rational Numbers will always be Whole Numbers
a) True
b) False
c)
d)

Which is a repeating decimal?
a) 3/7
b) -3/9
c) -3/5
d) 3/16

0.11011100....
a) Is rational because it repeats a pattern.
b) Is irrational because it repeats a pattern.
c) Is rational because it does not repeat a pattern and doesn't end.
d) Is irrational because it does not repeat a pattern and doesn't end.

√25
a) Is rational because it is a perfect square.
b) Is irrational because it is a perfect square.
c) Is rational because it is an imperfect square.
d) Is irrational because it is an imperfect square

12.05
a) Is irrational because it ends.
b) Is irrational because it is an integer.
c) Is rational because it does not end.
d) Is rational because it ends.

Irrational numbers are _____________.
a) ratios
b) repeating decimals
c) terminating decimals
d) decimals that never end or repeat

When would you use scientific notation?
a) When dealing with very large numbers
b) When dealing with very small numbers
c) Both 1 2
d) Neither 1 nor 2

Rational numbers include everything except
a) integers
b) fractions
c) decimals
d) non-repeating, never ending decimals

convert 673,000 to scientific notation
a) 67.3 x 10^4
b) 6730 x 10^5
c) 6.73 x 10^ -5
d) 6.73 x 10^5

Which of the following fractions would be a repeating decimal
a) 4/5
b) 1/3
c) 5/8
d) none of the above

What is 35,000 in scientific notation?
a) 35 x 10^3
b) 3.5 x 10^3
c) 35 x 10^-3
d) 3.5 x 10^4

How is 0.00165 written in scientific notation.
a) 165 x 10^(-5)
b) 1.65 x 10^(-3)
c) 16.5 x 10^(-4)
d) 0.165 x 10^(-2)

The diameter of a carbon atom is 0.000000874 m. What is this number in scientific notation?
a) 8.74 x 10^-7
b) 8.74 x 10^7
c) 87.4 x 10^-6
d) 87.4 x 10^6

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