Estimating Square roots

Front

What is the square root of a number?

Back

The square root of a number is a value that, when multiplied by itself, gives the original number.

Front

What is the symbol for square root?

Back

The symbol for square root is √.

Front

Estimate the square root of 50 to the nearest whole number.

Back

7 (since 7^2 = 49 and 8^2 = 64, so √50 is between 7 and 8).

Front

Identify the two consecutive integers between which the square root of 30 lies.

Back

5 and 6 (since 5^2 = 25 and 6^2 = 36).

Front

What is the approximate value of √16?

Back

4 (since 4^2 = 16).

Front

Estimate the square root of 20 to the nearest tenth.

Back

4.5 (since 4.5^2 = 20.25 and 4.4^2 = 19.36).

Front

What is the square root of 81?

Back

9 (since 9^2 = 81).

Front

Identify the two consecutive integers between which the square root of 45 lies.

Back

6 and 7 (since 6^2 = 36 and 7^2 = 49).

Front

Round to the nearest hundredth: √10.

Back

3.16.

Front

Estimate the square root of 90 to the nearest tenth.

Back

9.5 (since 9.5^2 = 90.25 and 9.4^2 = 88.36).