7th Grade Unit 1 Rational Numbers Review

Add and Subtract Rational Numbers

100

(-5) + 5 =

0

200

-7 - (-13) =

6

300

125 + (-25)

100

400

When subtracting integers first...

KFC (keep flip change)

500

^{(-100 + 25)}/_-5 =

15

Multiply and Divide Rational Numbers

100

(-15) x 3 =

-45

200

(-100) / (-100)

1

300

³⁽⁵⁾/₁₅

1

400

(-8)( 7)(-1)

56

500

What is the sign of (-3)7?

Negative

Net Worth

100

assets - liabilities =

net worth

200

ASSET OR LIABILITY: The value of a game system 

what is an asset

300

ASSET OR LIABILITY: the money you owe your parents for the game system 

what is a liability

400

Net worth is $50,500

Total assets are $87,323. 

What is the total liability?

$36,823

500

value of laptop $100

allowance $20

cell phone contribution $10

pet maintenance $10

what's the net worth

$100

Fractions

100

(1/2)*(-1/4)

(-1/8)

200

(2/4) / (2/6)

³/₂ =1¹/₂ reduced

300

What is the LCM or LCD value of the expression below? (-2/3) + (5/-6)

6

400

What is (5/16) written as a decimal?

0.3125

500

Simplify ³²/₁₂

2 ⁸/₁₂ = 2 ²/₃

Randoms

100

7.8 + 67.3

75.1

200

.26 x 8

2.08

300

^.5/_.9

.55555...

400

make sentence true <, >, =

.74 ( ) 7/5

< less than

500

Erica buys a 5¾ lb bag of candy, and a 3⅓ lb bag of candy. If each pound of candy costs $1.35, how much will Erica pay for both bags of candy?

Erica will pay $12.26