1. Which two square roots are used to estimate √5?
(a) √1 and √2
(b) √2 and √4
(c) √4 and √9
(d) √9 and √16

2. Which two square roots are used to estimate √43?
(a) √25 and √36
(b) √36 and √49
(c) √49 and √64
(d) √25 and √64

3. An esimate for -√66 is _____.
(a) -6
(b) -7
(c) -8
(d) -9

4. An estimate for √3 is ______. Round to the nearest tenth, if necessary.
(a) 1
(b) 1.2
(c) 1.7
(d) 2

5. Pierre is pouring concrete the foundation of a square deck covering 112 square feet. Which is the best estimate of one side of the deck? round to the nearest tenth, if necessary.
(a) 10 feet
(b) 10.3 feet
(c) 10.6 feet
(d) 11 feet