Math Year 7 Unit 1 Review

The Real Number System

100

-22 belongs to which categories of the Real Number System?

Integers and Rational Numbers

200

22.5 belongs to which categories of the Real Number System?

Rational Numbers

300

0.4920934838476542372982039934384782332889234673873462

Irrational Numbers

400

0 belongs to which categories of the Real Number System?

Whole Numbers, Integers, and Rational Numbers

500

Give an example of a number that is rational and an integer. 

Example must be a negative or positive whole number.

Comparing and Ordering Rational Numbers

100

Convert 1/20 to a decimal

.05

200

Order these numbers LEAST to GREATEST:4/5, .125, 25%, 1/5

.125, 1/5, 25%, 4/5

300

Compare the following numbers using <, >, or = 20% is ___ .3

<

400

Compare the following numbers using <, >, or =. .125 is______than 11.7%

>

500

List the following numbers in order from least to greatest. 1, -3, -7, 0, 2

-7, -3, 0, 1, 2

Challenge! Adding and subtracting Integers

100

-5+7

2

200

3-4

-1

300

(-4+5)-6=?

-5

400

?-8= -4

4

500

 ?+5=-1

-6

Integers

100

John dives twenty feet under water, what number could represent that?

-20

200

My Grandmother gave me $16 for Christmas, what number can represent that?

16 or +16

300

My hot air balloon descended 50 feet, what number can represent that?

-50

400

I dove underwater 40 feet, then swam back up 20 feet, what number could represent that?

-20

500

I climbed an altitude of 60ft then I descended back down 10 feet, what number could represent this? 

50 or +50

Absolute Value

100

l21l

21

200

l-7l

7

300

l-8l____ l4l Greater than or less than?

Greater than

400

l-8l+l5l-l6l=?

7

500

l2^2l-l-20l=?

-16