Online Self-Tests

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  1. If x = 23, find the value of 11 + (x – 14).

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  (1 point)

  
  

  Answer:

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  2. Evaluate the expression below when x = 7.

  (12 + x) – 3

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  (1 point)

  
  

  Answer:

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  3. If x = 18, find the value of x – (6 + 9).

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  (1 point)

  
  

  
  
  

  Answer:

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  4. If x = 15, find the value of 28 – x.

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  (1 point)

  
  

  
  
  

  Answer:

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  5. Evaluate the expression below when x = 12 and y = 8.

  x – y

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  (1 point)

  
  

  Answer:

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  6. If x = 36 and y = 18, find the value of x – y.

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  (1 point)

  
  

  Answer:

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