Online Self-Tests(E7)

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  1. If 10 = x – 10, find the value of 2 – (x – 20).

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  Answer:

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  2. Evaluate the expression when 10 x x = 10.

  x × 1 + 1

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  Answer:

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  3. If x = 5, find the value of 10 + x ÷ 1.

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  Answer:

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  4. If x = 10, find the value of 5 + x ÷ 5.

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  (1 point)

  
  

  Answer:

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  5. Evaluate the expression when x ÷ 5 = 1.

  (10 – x) ÷ 5

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  (1 point)

  
  

  Answer:

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  6. If (0.25 x x) = 0.25, find the value of 0.75 + x × 0.25.

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  (1 point)

  
  

  Answer:

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