Online Self-Tests(A11)

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  1-2. Find the unknown values.

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  (1 point each)

  
  

  1	2	+	3	=	1
  	3		2

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  3-4. Find the unknown values.

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  (1 point each)

  
  

  2	+	1	1	=	1
  3			4

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  5. Simplify.

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  (1 point each)

  
  

  15	=
  3

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  6. Find the unknown values.

  
  

  x	+	5	=	17
  4		3		12

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  (1 point)

  
  

  Answer:

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  7. Find the unknown values.

  
  

  5	+	x	=	22
  3		5		15

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  (1 point)

  
  

  Answer:

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  8. Find the unknown values.

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  (1 point each)

  
  

  14	=		2
  3			3