4. Subtract and simplify: -3/7-3/9
A.O B. 48/63 C. -6/16 D. -48/63
5. Divide: 20.15 + (-1.3).
A. -1.55 B.-135 26 C.-15.5 D. -155
6. Perform the indicated operations and simplify: 2 2/3+1 3/5 - 67/15
A. 3 2/15 B. 2 1/5 C-32/15 D. -2 1/5
7. Find the area of a rectangular park which is 183/5 m long and 50/3 m broad
A. 3050 meter square C.610 meter square B. 1525 meter square D. 233 meter square
8. What are the two square roots of 64?
A. -8 & +8 D. -16 & +16 B. +16 & -4 C. -16 & +4
9. The V40 is between.
A. 5 & 6 5 6 B. 6 & 7 C. 7 & 8 D. 8 & 9
10. The square root of 5 more than twice a number is 7. Find the number.
A. 20 B. 21 C. 22 D. 23
11. How would you classify the square root of -8? A. Rational B. Irrational C. Integral D. Imaginary
12. What are the two square roots of 121 and what is its principal root?
A. square root: +11 & -11
C. square root: + 12 & -11 Principal root: +11 Principal root:-11
B. square root: +11 & -11
D. square root: +12 & -12 Principal root:-11 principal root: +12
13. Between what two integers do the V15 lies? A. 2 & 3 B. 3 & 4 C. 485 D. 5 & 6
14. What is the estimated value of 742?
A. 6.16 B. 6.48 C. 6. 79 D. 6.92
15. Which of the following radicand lies in between the integers 7 & 8?
A. v11 B.V21 C. 741 D. V51 1