Online Self-Tests(A12)

• 
  

  1-2. Find the answer to the equation.

  ---

  (1 point)

  
  

  1	+	(	1	+	1	)	=
  8			8		8

• 
  

  3-4. Find the answer to the equation.

  ---

  (1 point each)

  
  

  5	–	(	1	+	1	)	=
  6			3		3

• 
  

  5-6. Find the answer to the equation.

  ---

  (1 point each)

  
  

  1	+	(	2	–	1	)	=
  3			3		3

• 
  

  7. Find the unknown value that makes the equation true.

  ---

  (1 point)

  	+	1	=	3
  4		4		4

• 
  

  8. Find the unknown value that makes the equation true.

  ---

  (1 point)

  3	+		=	5
  3		3		3

• 
  

  9-10. Find the answer to the equation.

  ---

  (1 point each)

  
  

  1	+	2	=
  4		3