Online Self-Tests(S20)

• 
  

  1. Find the answer to the equation.

  ---

  (1 point)

  
  

  	6434
  –	4621

  
  
• 
  

  2. Find the answer to the equation.

  ---

  (1 point)

  
  

  	4452
  –	3243

  
  
• 
  

  3. Find the answer to the equation.

  ---

  (1 point)

  
  

  	5464
  –	3273

  
  
• 
  

  4. Find the answer to the equation.

  ---

  (1 point)

  
  

  4538

  –

  3524

  =

  
  
• 
  

  5. Find the answer to the equation.

  ---

  (1 point)

  
  

  6578

  –

  4256

  =

  
  
• 
  

  6. Find the answer to the equation.

  ---

  (1 point)

  
  

  7603

  –

  5747

  =