Estimating Square Roots

Estimating Square Roots

Today I will use my knowledge of perfect squares and converting fractions to decimals to approximate square roots.

Multiple Choice

 Which point best represents $\sqrt{47}$ ?

• A

• B

• C

• D

• E

Multiple Choice

Which of the following statements is not true?

• The square root of 112 is between 10 and 11

• The square root of 180 is between 13 and 14

• The square root of 12 is between 4 and 5

• The square root of 5 is between 2 and 3

Multiple Choice

Which of the following would be the best estimate for  $\sqrt{198}$ ?

• 14.1

• 14.5

• 14.7

• 15.1

Poll

How do you feel about approximating square roots?

• Novice

• Apprentice

• Master

• Expert