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.

Tags

CCSS.8.EE.A.2

Front

Estimate √490 using a number line.

Back

√490 is approximately 22.14, which is between 22 and 23.

Tags

CCSS.8.NS.A.2

Front

Which number has a square root between 5 and 6?

Back

28, because √28 is approximately 5.29.

Tags

CCSS.8.NS.A.2

Front

Estimate √467 using a number line.

Back

√467 is approximately 21.63, which is between 21 and 22.

Tags

CCSS.8.NS.A.2

Front

Which point best represents √47 on a number line?

Back

E, because √47 is approximately 6.86.

Tags

CCSS.8.NS.A.2

Front

Estimate the square root of 36.

Back

√36 = 6.

Tags

CCSS.8.NS.A.2

Front

What is the relationship between perfect squares and square roots?

Back

A perfect square is a number that has an integer as its square root.

Front

Estimate √50.

Back

√50 is approximately 7.07, which is between 7 and 8.

Tags

CCSS.8.NS.A.2

Front

What is the square root of 81?

Back

√81 = 9.

Tags

CCSS.8.EE.A.2

Front

How do you determine if a number is a perfect square?

Back

A number is a perfect square if its square root is an integer.

Tags

CCSS.8.EE.A.2