Squares and Roots on a Number Line

Find the best estimate for √18 .
Look at the number line.

• 4.2

• 4.4

• 5.1

• 4

Identify the letter that best estimates the following square root on the following number line.

√156

• d

• b

• c

• e

Identify the letter that best estimates the following square root on the following number line.

√490

• e

• f

• g

• h

√ 4

• 2

• 7

• 16

• 1

Between which two whole numbers is the
√5?

• and 2

• and 3

• and 4

• and 5

Between which two whole numbers is the square root of 277?

• 15 and 16

• 16 and 17

• 18 and 19

• 14 and 15

The square root of 210 is between which two numbers?

• 13 and 14

• 14 and 15

• 15 and 16

• 17 and 18

The √20 is between which two integers?

• 2 & 3

• 3 & 4

• 4 & 5

• 5 & 6

The √40 is between which two integers?

• 7 & 8

• 6 & 7

• 5 & 6

• 4 & 5

Which number has a square root that  is between 7 and 8?

• 48

• 81

• 60

• 36