Online Self-Tests(CS19)

• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  33

  18

  =

  18

  –

  3

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  ×

  9

  =

  9

  +

  9

  +

  9

  
  
• 
  

  3. Determine which number is greater.

  ---

  (>, <, or =)

  
  

  81

  ÷

  3

  9

  ×

  9

  
  
• 
  

  4. Determine which number is greater.

  ---

  (>, <, or =)

  
  

  72

  –

  18

  18

  ×

  3

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  –

  18

  =

  18

  +

  18

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  54

  18

  =

  18

  ×

  4