Online Self-Tests(E21)

• 
  

  1. Determine the operation sign that makes the equation true.

  ---

  (+, –, x, ÷)

  
  

  24

  2

  =

  3

  ×

  4

  
  
• 
  

  2. Determine the unknown value that makes the equation true.

  ---

  
  

  –

  15

  ÷

  5

  =

  3

  
  
• 
  

  3. Determine which side of equation is greater.

  ---

  (>, <, or =)

  
  

  18

  –

  15

  12

  ÷

  4

  
  
• 
  

  4. Determine which side of equation is greater.

  ---

  (>, <, or =)

  
  

  8

  ÷

  2

  8

  ×

  0.5

  
  
• 
  

  5. Determine the unknown value that makes the equation true.

  ---

  
  

  ×

  3

  +

  3

  =

  9

  
  
• 
  

  6. Determine the operation sign that makes the equation true.

  ---

  (+, –, x, ÷)

  
  

  8

  8

  +

  4

  =

  5