7th Grade Math

Test PracticeT

92 Integers

C 30. OPEN ENDED Give an example of an addition sentence containing at

least four integers with a sum of zero.

31. CHALLENGE Name the property illustrated by the following.
    a. x + (-x) = 0 b. x + (-y) = -y + x

CHALLENGE Simplify.

32. 8 + (-8) + a 33. x + (-5) + 1 34. - 9 + m + (-6) 35. - 1 + n + 7


33. E WRITE MATH Explain how you know whether a sum is positive,
    negative, or zero without actually adding.

Write the ordered pair corresponding to each point graphed y

-^0 x

+

.

,

at the right. Then state the quadrant or axis on which each

point is located. (Lesson 1C)

41. J 42. K 43. L 44.M

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

45. a bank deposit of $75 46. a loss of 8 pounds


46. 13° below zero 48. a gain of 4 yards


47. spending $12 50. a gain of 5 hours
    37. SHORT RESPONSE Write an addition
    sentence to represent the number
    line below.
    
    
    • 12 - 11 - 10 - 9 - 8 - 7 - 6 - 5 - 4 - 3 - 2 - 1 0
    
    
    
    
    
    
    38. At 8 a.m., the temperature was 3°F
        below zero. By 1 p.m., the temperature
        rose 14°F and by 10 p.m., dropped 12°F.
        What was the temperature at 10 p.m.?
        A. 5°F above zero
        B. 5°F below zero
        C. 1°F above zero
        D. 1°F below zero
    
    
    39. What is the value of - 8 + 7 + (-3)?
        F. - 18
        G. - 4
        H. 2
        I. 18
    
    
    40. Which of the following expressions
        is represented by the number line
        below?
        
        
        • 5 - 4 - 3 - 2 - 1 0 1 2 3 45
          A. - 4 + 3 C. 3 + (-7)
          B. - 4 + 7 D. 0 + (-7)
        
        
        
        
    
    
    
    

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