Online Self-Tests(A17)

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  1-2. Find the unknown values.

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  (1 point each)

  
  

  1	2	+	1	5	=	3
  	5			6

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  3-4. Find the unknown values.

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  (1 point each)

  
  

  1	1	+	1	=	1
  	6		5

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  5. Simplify.

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  (1 point each)

  
  

  1	1	=
  	8		8

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  6. Find the unknown values.

  
  

  1	1	+	1	x	=	3
  	4			4

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  (1 point)

  
  

  Answer:

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  7. Find the unknown values.

  
  

  1	x	+	1	2	=	3	5
  	4			3			12

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  (1 point)

  
  

  Answer:

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  8. Find the unknown values.

  
  

  1	x	+	1	1	=	2	2
  	2			6			3

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  (1 point)

  
  

  Answer:

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