Online Self-Tests(A7)

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  1-2. Find the unknown values.

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  (1 point each)

  
  

  2	+	3	=
  5		6

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  3-4. Find the unknown values.

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  (1 point each)

  
  

  1	+	1	=
  6		5

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  5. Simplify.

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  (1 point each)

  
  

  18	=
  3

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  6. Find the unknown values.

  
  

  x	+	2	=	11
  2		7		14

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  (1 point)

  
  

  Answer:

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  7. Find the unknown values.

  
  

  2	+	x	=	18
  7		2		14

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  (1 point)

  
  

  Answer:

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• 
  

  8. Find the unknown values.

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  (1 point)

  
  

  8	=		1
  6			3