Estimating Roots of Irrational Numbers

Between what two integers is the square root of 44?

• 3 and 4
• 4 and 5
• 5 and 6
• 6 and 7

Between what two integers is the square root of 77?

• 5 and 6
• 6 and 7
• 7 and 8
• 8 and 9

Which is the best estimate for: √15

• 5.6
• 2.6
• 3.9
• 3.6

Which is the best estimate for: √28

• 5.6
• 5.9
• 5.3
• 8

Which is the best estimate for: √119

• 10.9
• 10.7
• 11.1
• 19

Which number is NOT a perfect square?

• 196
• 169
• 121
• 132

Point B could represent which of the following numbers?

• √24
• √30
• √35
• √42

Which number has a square root that could be estimated at 8.9?

• 65
• 90
• 80
• 70

Between which two whole numbers is the square root of 20?

• 5 and 6
• 10 and 2
• 4 and 5
• 3 and 4

Which number is a perfect square?

• 225
• 132
• 99
• 110