Online Self-Tests(S1)

• 
  

  1. Find the answer to the equation.

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  (1 point)

  
  

  7007

  –

  918

  =

  
  
• 
  

  2. Find the answer to the equation.

  ---

  (1 point)

  
  

  1022

  –

  223

  =

  
  
• 
  

  3. Find the answer to the equation.

  ---

  (1 point)

  
  

  1001

  –

  54

  =

  
  
• 
  

  4. Find the answer to the equation.

  ---

  (1 point)

  
  

  	1070
  –	21

  
  
• 
  

  5. Find the answer to the equation.

  ---

  (1 point)

  
  

  	4152
  –	4054

  
  
• 
  

  6. Find the answer to the equation.

  ---

  (1 point)

  
  

  	1106
  –	177