Convert Fractions & Rational/Irrational Numbers
- 1. How do I express decimals as fractions?
A) Move decimal point 2 places to the right.
B) Use long division.
C) Convert decimal to base 10 fraction and simplify.
D) Move decimal two places to the left.
- 2. How do I express decimals as percents?
A) Convert decimal to base 10 fraction and simplify.
B) Move decimal two places to the left.
C) Move decimal point 2 places to the right.
D) Use long division.
- 3. How do I express percents as fractions?
A) Move decimal two places to the left.
B) Move decimal point 2 places to the right.
C) Divide the number by 100 and remove the percent sign.
- 4. Which of the following is an irrational number?
A) 45
B) 12.3333...
C) 70.234
D) pi
E) -28
- 5. Write 0.5 as a fraction in simplest form.
- 6. Write 3/8 as a decimal.
- 7. Write 0.35 as a fraction in simplest form.
- 8. TRUE OR FALSE: If a whole number is not a perfect square, then its square root is an irrational number.
A) TRUE
B) FALSE
- 9. TRUE OR FALSE: A fraction with a denominator of 0 is undefined because you cannot divide by zero. It is not a real number.
A) TRUE
B) FALSE
- 10. Identify if 0/3 is rational, irrational or not a real number.
A) Not a real number
B) Irrational
C) Rational
- 11. TRUE OR FALSE: Irrational numbers are not real numbers.
A) TRUE
B) FALSE
- 12. Is the square root of 81 a rational number?
A) YES
B) NO
- 13. Is -12 an irrational number?
A) YES
B) NO
- 14. TRUE OR FALSE: A terminating decimal is an irrational number.
A) FALSE
B) TRUE
- 15. TRUE OR FALSE: All perfect squares are rational numbers.
A) TRUE
B) FALSE
- 16. TRUE OR FALSE: If the decimal has a growing pattern, the number is irrational.
A) TRUE
B) FALSE
- 17. Is 4.161161116 rational or irrational?
A) Irrational
B) Rational
- 18. Is 0 rational or irrational?
A) Rational
B) Irrational
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