Online Self-Tests(S40)

• 
  

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

  ---

  (1 point)

  
  

  45

  –

  =

  27

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  26

  =

  23

  
  
• 
  

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

  ---

  (1 point)

  
  

  18

  –

  =

  9

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  14

  =

  26

  
  
• 
  

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

  ---

  (1 point)

  
  

  46

  –

  =

  23

  
  
• 
  

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

  ---

  (1 point)

  
  

  –

  8

  =

  45