Irrational Numbers Review

Which best represents point Z on the number line?

• √165

• √149

• √12.2

• √13

Tags

CCSS.8.NS.A.2

Which value best approximates point R?

• 18/4

• √50.9

• √7.13

• π²

Tags

CCSS.8.NS.A.2

Which is the best approximation of point P?

• √8

• √2.8

• 17/5

• 2 1/4

Tags

CCSS.8.NS.A.2

The √40 is between which two integers?

• 7 & 8

• 6 & 7

• 5 & 6

• 4 & 5

Tags

CCSS.8.NS.A.2

_____________ number is a number that cannot be written as a ratio of two integers.

• An integer

• A rational

• An irrational

• A repeating

Answer explanation

A rational number cannot be written as a fraction (ratio of two integers). This is because it is non-terminating and non-repeating.

Example:

$\sqrt{2}=1.414213562...$

Tags

CCSS.8.NS.A.1

Which statement is true about irrational numbers?

• Some irrational numbers are natural numbers.

• Irrational numbers include decimals with a repeating pattern.

• The square root of every non-perfect square will be an irrational number.

• Irrational numbers will never be real numbers.

What is an irrational number?

• All whole numbers and their negative counterparts.

• A number that cannot be expressed as a fraction.

• A number with no fractional or decimal part.

Tags

CCSS.8.NS.A.1

Tags

CCSS.8.NS.A.1

Tags

CCSS.8.NS.A.1

Which of the following best defines irrational numbers?

• numbers that can be written as a fraction or decimal that either terminates or continues forever in a repeating pattern

• numbers that make sense

• numbers that go on forever and ever with out a repeating pattern and cannot be written as a fraction

• fractions

Tags

CCSS.8.NS.A.1