Online Self-Tests(S23)

• 
  

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

  ---

  (1 point)

  
  

  –

  21

  =

  25

  
  
• 
  

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

  ---

  (1 point)

  
  

  36

  –

  =

  12

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  27

  =

  8

  
  
• 
  

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

  ---

  (1 point)

  
  

  27

  –

  =

  8

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  15

  =

  8

  
  
• 
  

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

  ---

  (1 point)

  
  

  14

  –

  =

  6