Online Self-Tests(B36)

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  1. There are 21 kids in Mr. Roller’s class, 18 kids in Mrs. Jacobs’s class, and an unknown number of students in Mrs. Alger’s class. Given that there are 58 students in total from all 3 classes, how many students are in Mrs. Alger’s class?

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  (1 point)

  
  

  Answer:

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  2. Determine the unknown value.

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  (1 point)

  
  

  27

  –

  =

  16

  
  
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  3. Paul has 28 baseball cards. He receives an additional 12 cards from his friend Jack. Now Jack has twice as many as Paul has now. How many cards does Jack have?

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  (1 point)

  
  

  
  
  
  

  Answer:

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  4. Multiply.

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  (1point)

  
  

  	24
  ×	8

  
  
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  5. Determine what makes the equation true.

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  (1 point)

  
  

  –

  18

  =

  8

  ×

  2

  
  
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  6. Subtract.

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  (1point)

  
  

  	22
  –	15