Online Self-Tests(CS18)

• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  21

  12

  =

  12

  –

  3

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  ×

  3

  =

  3

  +

  3

  +

  3

  
  
• 
  

  3. Determine which number is greater.

  ---

  (>, <, or =)

  
  

  27

  ÷

  3

  3

  ×

  3

  
  
• 
  

  4. Determine which number is greater.

  ---

  (>, <, or =)

  
  

  48

  –

  12

  12

  ×

  3

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  –

  12

  =

  12

  +

  3

  
  
• 
  

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

  ---

  (number, +, –, x, ÷, >, <, or =)

  
  

  12

  12

  =

  12

  ×

  2