Online Self-Tests(S20)

• 
  

  1-2. Find the answer to the equation.

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  (1 point each)

  
  

  1	1	–	3	=
  	2		10

• 
  

  3-4. Find the answer to the equation.

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  (1 point each)

  
  

  1	1	–	2	=
  	10		2

• 
  

  5-6. Find the answer to the equation.

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  (1 point each)

  
  

  1	3	–	7	=
  	10		10

• 
  

  7-8. Find the unknown values that makes the equation true.

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  (1 point each)

  	–	2	=	1
  6		3

• 
  

  9-10. Find the unknown values that makes the equation true.

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  (1 point each)

  4	–		=	3
  5		5

• 
  

  11-12. Find the answer to the equation.

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  (1 point each)

  
  

  4	–	1	=
  10		10