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Mathematics

8th Grade

CCSS covered

Used 10+ times

Comparing Real Numbers
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12 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Choose the sign that will make the statement true.
√15 ____ 3.5

<
>
=

Tags

CCSS.8.NS.A.2

2.

MULTIPLE SELECT QUESTION

2 mins • 1 pt

15<35\sqrt{15}<\frac{3}{5}  

Select true or false to indicate whether the comparison is true.

TRUE

FALSE

Answer explanation

The square root of a number is the product (multiplication) of 2 identical numbers.  When pulled out of the radical (square root symbol), it is represented by a single number.  Ex:  \sqrt{25}=\sqrt{5\cdot5}=5  

Tags

CCSS.8.NS.A.2

3.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

21>5\sqrt{21}>5  

Select true or false to indicate whether the comparison is true.

TRUE

FALSE

Answer explanation

The square root of a number is the product (multiplication) of 2 identical numbers.  When pulled out of the radical (square root symbol), it is represented by a single number.  Ex:  25=5⋅5=5\sqrt{25}=\sqrt{5\cdot5}=5  

Tags

CCSS.8.NS.A.2

4.

MULTIPLE SELECT QUESTION

5 mins • 1 pt

88>33\frac{8}{8}>\frac{3}{\sqrt{3}}  

Select true or false to indicate whether the comparison is true.

TRUE

FALSE

Answer explanation

Take the square root of 3 before simplifying the expressions.  Then compare your solutions.

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Put in the symbol to make the statement true...

−17.5 −−−−−−−−−121-17.5\ _{--------}-\sqrt{121}  

>

<

=

Tags

CCSS.6.NS.C.7A

CCSS.6.NS.C.7B

6.

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

Media Image

Which number is the smallest?

A

B

C

D

E

Tags

CCSS.8.NS.A.2

7.

MULTIPLE CHOICE QUESTION

3 mins • 5 pts

Media Image

What does this symbol represent?

square root

divide by 2

cube root

greater than or less than

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