Approximating Imperfect Square Roots

The √20 is between which two integers?

• 2 & 3

• 3 & 4

• 4 & 5

• 5 & 6

The √40 is between which two consecutive whole numbers?

• 7 & 8

• 4 & 5

• 5 & 6

• 6 & 7

Estimate the square root.

• 4

• 5

• 6

• 7

Estimate the square root.

• 3

• 4

• 5

• 6

Level 3: Estimate the square root.

• Between 7 and 8 and closer to 8

• Between 8 and 9 and closer to 9

• Between 9 and 10 and closer to 9

• Between 9 and 11 and closer to 10

• a
• b
• c
• d

Which is the best estimate of the of √3?

• 1 

• 2

• 1 ⅔

• 2 ⅔