Math 7 Chapter 1 Review

Absolute Value

100

|3|

3

200

|-9|

9

300

-|-17|

-17

400

>,<, or =

|-2| ___ -2

>

500

The elevation of the Empire State Building is 1,250 feet. The elevation of The Rockaway Peninsula in Queens, NY is -1,200 feet. Which is closer to sea level?  

The Rockaway Peninsula

Adding Integers

100

-16 + (-11)

-27

200

-15 + 5

-10

300

100 + (-75)

25

400

6 + (-3) + (-1) + 3

5

500

Evaluate the expression when a=5, b=-3, c=9

-a + b - c

-17

Adding Rationals

100

What is the additive inverse of 3 1/2

-3 1/2

200

-4.2 + (-2.56)

-6.76

300

-5 3/4 + 4 5/6

-11/12

400

Write -4.37 - (-9.28) as an equivalent addition expression:

-4.37 + 9.28

500

Evaluate the expression when a=2.45, b=6.18, c= -9.32

a + (-b) - c

5.59

Subtracting Integers

100

8 - 18

-10

200

-16 - (-5)

-11

300

-18 - 7

-25

400

-12 - (-27) 

15

500

Your score on a game show is -300 points. You answer the final question incorrectly and lose 400 points. What is your final score?

-700 points

Subtracting Rationals

100

Subtracting rationals (or integers) is the same as ______________.

Adding the opposite

200

2.35 - (-1.37)

3.72

300

-2 2/3 - 3 7/9

-6 4/9

400

Find the distance between -3.4 and 2.8

6.2

500

An airplane is flying at an elevation of 12,170.25m. A submarine is underwater at an elevation of -625.18m. How far apart are the airplane and the submarine?

12,795.43m