7th Grade Math

Mid-Chapter Check 99

Write an integer for each situation. (Lesson 1B)

1. dropped 45 feet


2. a bank deposit of $100


3. gained 8 pounds


4. lost a $5 bill


5. OCEANS The deepest point in the world is
   the Mariana Trench in the Western Pacific
   Ocean at a depth of 35,840 feet below sea
   level. Write this depth as an integer.
   (Lesson 1B)

Evaluate each expression. (Lesson 1B)

6. ⎪- 16 ⎥ 7. ⎪ 24 ⎥


7. ⎪- 9 ⎥ - ⎪ 3 ⎥ 9. ⎪- 13 ⎥ + ⎪- 1 ⎥

Graph and label each point on a coordinate

plane. (Lesson 1C)

10. D(4, -3) 11. E(-1, 2)


11. F(0, -5) 13. G(-3, 0)


12. MULTIPLE CHOICE Which line contains the
    ordered pair (-1, 4)? (Lesson 1C)
    y

x

6

• 2


• 4


• 6

O

z

y

x

w

A. line w C. line y

B. line x D. line z

Add. (Lesson 2B)

15. 3 + 4 + (-3) 16. 7 + (-11)


16. 
    
    
    
    • 5 + (-6) 18. 8 + (-1) + 1
    
    
    
    
    
    
    19. MULTIPLE CHOICE Kendra deposited $78 into
        her savings account. Two weeks later, she
        deposited a check for $50 into her account
        and withdrew $27. Which of the following
        expressions represents the amount of
        money left in her account? (Lesson 2B)
        F. $78 + (-$50) + (-$27)
        G. $78 + (-$50) + $27
        H. $78 + $50 + (-$27)
        I. $78 + $50 + $27
    
    
    
    

Subtract. (Lesson 2D)

20. 9 - 15 21. - 3 - 10


21. 8 - (-12) 23. - 4 - (-13)


22. ANALYZE TABLES The table shows the
    record low temperatures for Des Moines,
    Iowa.

Month Temperature (°F)

January - 24

May 30

What is the difference between the low

temperature for January and the low

temperature for May? (Lesson 2D)

25. CHEMISTRY The melting point of mercury
    is -36°F and its boiling point is 672°F.
    What is the difference between these two
    temperatures? (Lesson 2D)


26. MULTIPLE CHOICE During two plays of a
    football game, the Valley Tigers had a loss
    of 4 yards and a gain of 16 yards. Which of
    the following expressions represents the
    difference between the number of yards?
    (Lesson 2D)
    A. - 4 + 16 C. 4 + 16
    B. - 4 + (-16) D. 4 - 16

Mid-Chapter

Check

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