Integers and Real Numbers

√25

• Rational

• Irrational

Answer explanation

The square root of 25 is a rational number because it can be expressed as a whole number, 5, which is a perfect square.

Tags

CCSS.8.NS.A.1

Absolute value

• |-3| = 3

• |-3| = -3

Answer explanation

The absolute value of -3 is 3 because the absolute value of a number is always positive. Therefore, |-3| = 3.

Tags

CCSS.6.NS.C.7C

Choose all the names that apply to this number:

• Whole

• Integer

• Rational

• Irrational

• Real

Answer explanation

The number 1.6 recurring is a rational and real number because it can be expressed as a fraction and it is a real number on the number line.

What are the square roots of 121?

• 11 and -11

• 11x11

Answer explanation

The square roots of 121 are 11 and -11. These values, when multiplied together, give 121. Therefore, the correct choices are 11 and -11.

Tags

CCSS.8.EE.A.2

• -50

• +50

Tags

CCSS.6.NS.C.5

A temperature drop from 10 degrees to -15 degrees is represented by which integer? (a)  

• 25

• -25

• 5

• -5

Tags

CCSS.7.NS.A.1C

integer

• Any positive or negative numbers including zero. THEY DO NOT INCLUDE fractions, decimals, or mixed numbers

• ever number greater than 1

Answer explanation

The correct answer is 'Any positive or negative numbers including zero. THEY DO NOT INCLUDE fractions, decimals, or mixed numbers'. This choice includes all integers, while the other choice 'ever number greater than 1' is incorrect.

Tags

CCSS.8.NS.A.1

-0.775 is a

• Natural Number

• Whole Number

• Integer

• Real Number

Positive and negatives with no decimals or fractions are called

• Whole number

• Natural numbers

• Integers

• Rational number

All integers are...

• positive or negative whole numbers including zero

• Whole numbers that are positive only

• positive or negative numbers but not zero

• Fractions and decimals