Online Self-Tests(F19)

• 
  

  1-2. Find the missing values.

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  (1 point each)

  
  

  9	–	4	=
  7		7

• 
  

  3-4. Find the missing values.

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  (1 point each)

  
  

  6	–	1	=
  7		7

• 
  

  5-6. Find the missing values.

  ---

  (1 point each)

  
  

  5	–	2	=
  5		5

• 
  

  7-8. Find the missing values.

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  (1 point each)

  
  

  	–	1	=	1
  		2		2

• 
  

  9-10. Find the missing values.

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  (1 point each)

  
  

  8	–		=	4
  9				9

• 
  

  11-12. Find the missing values.

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  (1 point each)

  
  

  5	–	2	=
  4		4