Online Self-Tests(E5)

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  1. If x + 5 = 10, find the value of (x – 3) x 2.

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  Answer:

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  2. Evaluate the expression when x × 3 = 3.

  3 – x × 1

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  Answer:

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  3. If x = 5, find the value of 2 × x + x.

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  (1 point)

  
  

  
  

  Answer:

  
  

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  4. If x = 4 and y = 4, find the value of 2 × y – x.

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression when x = 3 and y = 3.

  x × y

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  (1 point)

  
  

  Answer:

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  6. If (0.5 × x) = 10 and y = 10, find the value of x – y ÷ 4.

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  (1 point)

  
  

  Answer:

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