Square Roots Estimation Quiz

What should you remember when estimating negative square roots?

• Use only positive numbers.

• Add the negative sign after calculation.

• Keep the negative sign out front.

• Ignore the negative sign.

What is the closest decimal approximation for the square root of 106?

• 10.3

• 10.5

• 10.2

• 10.4

When estimating the square root of 126, what is the closest approximation?

• 11.1

• 11.2

• 11.3

• 11.4

What was the mistake made when estimating the square root of 45?

• Using a calculator.

• Rounding incorrectly.

• Forgetting the negative sign.

• Using the wrong number.

What is the correct closest approximation for the square root of 45?

• 6.8

• 6.9

• 6.6

• 6.7

Which perfect square is just smaller than 115?

• 81

• 100

• 121

• 144

What is the square root of 121?

• 10

• 11

• 12

• 13

When estimating the square root of 47, which perfect square is just larger?

• 36

• 81

• 64

• 49

In the context of negative numbers, which is smaller?

• -7

• -6

• -8

• -5

What is the correct order for negative square roots of 47?

• -47 < -7 < -6

• -6 < -47 < -7

• -47 < -6 < -7

• -7 < -47 < -6