IAG - Estimating Square Roots - 2024-25 - NO CALCULATOR!

Front

What is a square root?

Back

A square root of a number is a value that, when multiplied by itself, gives the original number. For example, the square root of 9 is 3 because 3 x 3 = 9.

Front

Estimate the square root of 50. What two whole numbers does it fall between?

Back

The square root of 50 falls between 7 and 8.

Front

Back

Front

How can you estimate the square root of a number without a calculator?

Back

You can estimate the square root by finding the two perfect squares it falls between and determining which one it is closer to.

Front

What is the square root of 64?

Back

The square root of 64 is 8.

Front

Back

Front

Estimate the square root of 20. What two whole numbers does it fall between?

Back

The square root of 20 falls between 4 and 5.

Front

What is the square root of 81?

Back

The square root of 81 is 9.

Front

Back

Front

Estimate the square root of 30. What two whole numbers does it fall between?

Back

The square root of 30 falls between 5 and 6.