Online Self-Tests(S31)

• 
  

  1. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  8

  –

  =

  0

  
  
• 
  

  2. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  –

  13

  =

  13

  
  
• 
  

  2. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  23

  –

  =

  14

  
  
• 
  

  4. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  –

  27

  =

  2

  
  
• 
  

  5. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  6

  –

  =

  3

  
  
• 
  

  6. Determine the unknown value that makes the equation true.

  ---

  (1 point)

  
  

  –

  14

  =

  1