1. What do you call a number that can be expressed in the form , where a and b are
integers, and b is not equal to 0?
a. Integers b. Irrational c. natural d. rational
2. Which of the following refers to a number whose decimal representation is neither
terminating nor repeating? This number cannot be expressed as a quotient of integers.
a. Integers b. Irrational c. natural d. rational
3. What do you call the positive nth root of a number?

a. perfect square b. principal c. radical root d. radicand
4. What is the principal root of √81?
a. -9 b. 8 c. 9 d. 81
5. Which of the following best describes the principal root of √50?
a. integer b. irrational c. natural d. rational
6. Find the number whose square root lies between 8 and 9?
a. 8 b. 9 c. 75 d. 85
7. Which of the numbers is classified as perfect square integer?
a. 49 b. 50 c. 63 d. 2007
8. Which of the following numbers has an irrational square root?
a. 1 b. 81 c. 100 d. 300
9. Which of the following is NOT a perfect square integer?
a. 121 b. 144 c. 149 d. 169
10. Where does the square root of 30 lie?
a. between 5 & 6 b. beyond 6 c. before 5 d. at 6