7th Grade Math

Extra Practice EP5

Extra Practice

Multi-Part Lesson 2-1 (continued)

PART C PAGES 81–85

Write the ordered pair for each point graphed at the right.

Then name the quadrant or axis on which each point

is located.

1. A 2. B 3. C

y

0 x

(

%

, +

"

'

& $

*

)

#

4. D 5. E 6. F


5. G 8. H 9. I


6. J 11. K 12. L

Graph and label each point on a coordinate plane.

13. N (-4, 3) 14. K (2, 5) 15. W (-6, - 2 ) 16. X (5, 0)


14. Y (4, - 4 ) 18. M (0, - 3 ) 19. Z (-2, 0.5) 20. S (-1, - 3 )


15. A (0, 2) 22. C (-2, - 2 ) 23. E (0, 1) 24. G (1, - 1 )

Multi-Part Lesson 2-2: Add and Subtract Integers

PARTS A B PAGES 86–92

Add.

1. 
   
   
   
   • 4 + 8 2. 14 + 16 3. - 7 + (- 7 )
   
   
   
   


2. 
   
   
   
   • 9 + (- 6 ) 5. - 18 + 11 6. - 36 + 40
   
   
   
   


3. 42 + (- 18 ) 8. - 42 + 29 9. 18 + (- 32 )


4. 
   
   
   
   • 96 + 6 11. - 2 + (- 5 ) 12. - 6 + (- 32 )
   
   
   
   


5. 3 + 98 14. - 120 + (-2) 15. - 120 + (-6)


6. 5 + (-2) 17. 6 + 3 18. - 6 + 6

PARTS C D PAGES 93–98

Subtract.

1. 3 - 7 2. - 5 - 4 3. - 6 - 2


2. 8 - 13 5. 6 - (- 4 ) 6. 12 - 9


3. 
   
   
   
   • 2 - 23 8. 63 - 78 9. 0 - (- 14 )
   
   
   
   


4. 15 - 6 11. 18 - 20 12. - 5 - 8

ALGEBRA Evaluate each expression if k = - 3, p = 6, n = 1, and d = - 8.

13. 55 - k 14. p - 7 15. d - 15


14. n - 12 17. - 51 - d 18. k - 21


15. n - k 20. - 99 - k 21. p - k


16. d - (- 1 ) 23. k - d 24. n - d

EP2_EP36_ExtPract_M1_895130.indd EP5 1/6/10 11:46 AM