Online Self-Tests(A4)

• 
  

  1. There are 42 pigeons in a park. If 38 pigeons fly away and twice the number of birds that just flew away arrive, how many pigeons are there now?

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  2. Find the value of x.

  
  

  x	–	1	=	1
  3		6		6

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  3. Paul has 21 baseball cards. He receives an additional 49 cards from his friend Jack. If Jack has 3.5 as many as cards as Paul has now, how many cards does Jack have?

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  4. Find the value of x.

  
  

  2	+	x	=	5
  4		8		8

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  5. Solve the equation.

  
  

  x

  –

  6

  =

  6

  ---

  (1 point)

  
  

  Answer:

  ---
• 
  

  6. If 1 + x= 2 and y= 2, find the value of x× y.

  ---

  (1 point)

  
  

  Answer:

  ---