Operations with Real Numbers

Select all the expressions that result in a rational number.

• 
• 
• 
• 
• 

Tags

CCSS.7.NS.A.1D

When you add two rational numbers, the sum is...

• always rational

• sometimes rational, sometimes irrational

• always irrational

• never rational

Tags

CCSS.7.NS.A.1D

When you multiply two rational numbers, the sum is...

• always rational

• sometimes rational, sometimes irrational

• always irrational

• never rational

Tags

CCSS.HSN.RN.B.3

When you add a rational number and irrational number, the sum is...

• always rational

• sometimes rational, sometimes irrational

• always irrational

• mostly irrational

Tags

CCSS.7.NS.A.1D

When you multiply a rational number and irrational number, the product is...

• always rational

• sometimes rational, sometimes irrational

• always irrational

• mostly irrational

Tags

CCSS.HSN.RN.B.3

What is the following a model of?

• the sum of two irrational numbers

• the sum of two rational numbers

• a rational number plus an irrational number

• the product of two irrational numbers

Tags

CCSS.HSN.RN.B.3

A repeating decimal or decimal that terminates is called a 

• Natural Number
• Irrational Number
• Rational Number
• Whole Number

Tags

CCSS.6.NS.C.6

Whole numbers are natural numbers together with "zero."

• True
• False

Tags

CCSS.K.CC.A.3

What is an example of an irrational number?

• -2/3
• .75575557654..
• 23
• 0

Tags

CCSS.8.NS.A.1

Which of the following statements is always true?

• All integers are whole numbers
• all rational numbers are integers
• some whole numbers are not rational numbers
• all whole numbers are integers