Question

1. Rosa, Roberto, Andrea, and Inno find an estimate for √10. Who has proposed the best solution?

A. Rosa: "Use √9 and √25 to estimate."
B. Roberto: "I will use √4 and √9."
C. Andrea: "It should be √11 and √12."
D. Inno: "Use √9 and √ 16 to find the estimate."

2.Joy knits a square blanket that has an area of 1,500 square inches. What is the approximate length of each side of the blanket?

A.16 inches
B.27 inches
C.39 inches
D.42 inches

3.An example of an irrational number is _____.

A.-√15
B.√16
C.-√9
D.√1

Answer 1

1 Hint: √9 = 3 and √16 = 4

2 Hint √1600 = 40