Approximating Irrational Numbers

Estimate the square root.

• 4.2

• 4

• 4.6

• 5

The √20 is between which two integers?

• 2 & 3

• 3 & 4

• 4 & 5

• 5 & 6

Which number has a square root that is between 5 and 6?

• 48

• 81

• 28

• 36

Which is the best approximation of point P?

• √8

• √2.8

• 17/5

• 2 1/4

Which is the best estimate for: √28

• 5.6

• 5.9

• 5.3

• 8

Point B could represent which of the following numbers?

• √24

• √30

• √35

• √42

• 20

• 26

• 28

• 36

• 20

• 25

• 30

• 65