Approximating Square Roots Concepts

A number that, when divided by itself, gives one.

A number that, when added to itself, gives a perfect square.

A number that, when multiplied by itself, gives a perfect square.

A number that, when multiplied by itself, gives a non-integer.

Because approximate square roots are not useful without exact square roots.

Because exact square roots are more commonly used in real life.

Because approximate square roots are based on the knowledge of exact square roots.

Because exact square roots are easier to calculate.

49 and 64

36 and 49

16 and 25

25 and 36

7.5

7.8

7.6

7.7

Because 7.7 is a more common approximation.

Because 7.7 is closer to 60 than 7.8.

Because 7.7 is easier to calculate.

Because 7.7 is a whole number.

16 and 25

25 and 36

36 and 49

49 and 64

5.2

5.3

5.5

5.4

Because 5.3 is closer to 28 than 5.2.

Because 5.3 is easier to calculate.

Because 5.3 is a whole number.

Because 5.3 is a more common approximation.

Use one decimal place.

Use three decimal places.

Use no decimal places.

Use two decimal places.

Round the number to the nearest whole number.

Check if the number is a whole number.

Multiply the number by itself again.

Write the number in exponential form.