Online Self-Tests(S38)

• 
  

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

  ---

  (1 point)

  
  

  51

  –

  =

  34

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  19

  =

  7

  
  
• 
  

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

  ---

  (1 point)

  
  

  29

  –

  =

  18

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  32

  =

  21

  
  
• 
  

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

  ---

  (1 point)

  
  

  27

  –

  =

  16

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  7

  =

  25