Online Self-Tests(S27)

• 
  

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

  ---

  (1 point)

  
  

  –

  37

  =

  37

  
  
• 
  

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

  ---

  (1 point)

  
  

  65

  –

  =

  53

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  21

  =

  64

  
  
• 
  

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

  ---

  (1 point)

  
  

  66

  –

  =

  20

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  67

  =

  35

  
  
• 
  

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

  ---

  (1 point)

  
  

  45

  –

  =

  42