Online Self-Tests(B22)

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  1. There are 9 basketballs and some tennis balls. If there are three times as many tennis balls as basketballs then how many basketballs and tennis balls are there in total?

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  (1 point)

  
  

  Answer:

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  2. Determine the unknown decimal.

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  (1point)

  
  

  2.56

  –

  =

  1.52

  
  
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  3. Charles had 21 balloons but gave 5 away. Then he acquired twice as many balloons as he gave away. How many ballons does Charles have now?

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  (1 point)

  
  

  
  
  

  Answer:

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  4. Determine the unknown sign.

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  (number, +, –, x, ÷, >, <, or =)

  
  

  2	–	2		2
  3		6		6

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  5. Determine the value that makes the equation true.

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  (number, +, –, x, ÷, >, <, or =)

  
  

  +

  (2

  ×

  0)

  =

  6

  
  
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  6. If x ÷ 2 = 0.25 and y = 0.25, find the value of x – y.

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  (1 point)

  
  

  Answer:

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