October Math Review (pd. 1)

Compare

100

Which is the SMALLEST number? 

8 or 15

8

200

What is the BIGGEST number?

5  or  9

9

300

What is the biggest number? 

-20   or    3

3

400

What is the smallest number? 

-12   or   -18 

-18

500

What is the biggest number?  

2.47    or    2.6

2.6

Square Roots

100

What is the square root of 81?

9

200

What is the square root of 12? 

3.464101...

300

Is 49 a perfect square? 

Yes

400

Is 20 a perfect square?

No

500

How much is: The negative square root of twenty-five

-5

Absolute Value

100

How much is |8| ?

8

200

How much is |-12| ?

12

300

How much is |-3.8| ?

3.8

400

How much is -|-18| ?

-18

500

How much is -22 ?

-22