Number System Review

Absolute Value

100

|-10.1|

10.1

200

|7 1/8|

7 1/18

300

|-6.3| ? |-19/20|

Greater than, Less than or equal to

>

400

|9|

9

500

|-100|

-100

Compare Rational Numbers

100

<,>, or =

0 ? -7

0>-7

200

<, >, or =

10 ? |-10.0|

10=|-10.0|

300

<,>, or =

2.5 ? -0.5

2.5 > -0.5

400

True or False

2 1/4 < 2 1/5

True

500

-8.7 ? -7.8

<

Order Rational Numbers

100

Write these rational numbers in order:

16/5, -6.65, -6 5/6, -5/6

-6 5/6, -6.65, -5/6, 16/5

200

Write in order:

-7, 1, 5, -2, -9, -4

-9, -7, -4, -2, 1, 5

300

What is the missing number?

15, 6.7, 8/4, 100%, -55%,___, -2.5

A. 80%. B. -1. C. -2.6. D. -180% 

C. -2.6

400

Account balances for the last five students through the lunch line:

RJ -8, Lila 2, Matt 6, Katy 14, Sam -5

Order students from least to greatest.

RJ, Sam, Lila, Matt, Katy

500

Order plants from greatest amount to least amount of water.

Plant A 1.4

Plant B 9/10

Plant C 4/3

A, C, B

Write Inequalities

100

Write two statements of inequality:

-3, 2

-3<2 and 2>-3

200

Translate the inequality to a written statement:

-19<-14

negative 19 is less than negative 14

300

Determine the inequality sign:

-7 ? -6.9

-7<-6.9

400

negative one is less than 4

-1<4

500

-5/3 is to the left of -1 1/2

-1 1/2 > -5/3

Integers in real life

100

The temperature drops 23 degrees over night. Write an integer to represent the statement.

-23

200

Ron lost 15 yards on the football play

-15

300

The thermometer reads -9 degree. What is the absolute value of the temperature? 

9 degree

400

A scuba diver is 40 feet below sea level

-40

500

Water boils at 212 degrees Fahrenheit.

212