Estimating Square Roots Challenge

What is a non-perfect square?

• A number that cannot be expressed as the square of a whole number.

• A number that is always odd.

• A number that can be expressed as the square of a whole number.

• A number that is always even.

Which two perfect squares is the square root of 10 between?

• 16 and 25

• 1 and 4

• 4 and 9

• 9 and 16

What is the approximate value of the square root of 10?

• 4.1

• 3.5

• 3.1

• 2.5

Why is the square root of 10 closer to 3 than to 4?

• Because 10 is closer to 16 than to 9.

• Because 10 is an odd number.

• Because 10 is closer to 9 than to 16.

• Because 10 is an even number.

What is the difference between 10 and the nearest perfect square 9?

• 2

• 4

• 1

• 3

Which two perfect squares is the square root of 20 between?

• 16 and 25

• 9 and 16

• 4 and 9

• 25 and 36

What is the approximate value of the square root of 20?

• 4.1

• 4.4

• 4.6

• 5.0

Which two perfect squares is the square root of 2 between?

• 16 and 25

• 9 and 16

• 4 and 9

• 1 and 4

What is the approximate value of the square root of 2?

• 1.4

• 1.3

• 1.2

• 1.1

How can you check the accuracy of your estimated square root?

• By adding the estimated value to the original number.

• By comparing it to the nearest whole number.

• By squaring the estimated value and comparing it to the original number.

• By dividing the original number by the estimated value.