Real Numbers

Front

What is a real number?

Back

A real number is any number that can be found on the number line, including both rational and irrational numbers.

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 the square root of 63.

Back

Approximately 7.9.

Tags

CCSS.8.NS.A.2

Front

Between which two consecutive whole numbers is √40?

Back

Between 6 and 7.

Tags

CCSS.8.NS.A.2

Front

Round √119 to the nearest tenth.

Back

10.9.

Tags

CCSS.8.NS.A.2

Front

How do you convert a repeating decimal to a fraction?

Back

Set the repeating decimal equal to a variable, multiply to eliminate the decimal, and solve for the variable.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

Convert 0.444... to a fraction.

Back

4/9.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and denominator are integers.

Tags

CCSS.5.NBT.A.2

Front

Which of the following is a rational number: √110, √324, √65, √80?

Back

√324 is a rational number because it equals 18.

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

Front

What is an irrational number?

Back

An irrational number is a number that cannot be expressed as a simple fraction, and its decimal representation goes on forever without repeating.

Tags

CCSS.8.NS.A.1