Rational numbers   »      
Add and Subtract in ℚ
- For experts -

 On this page you can practice calculating
with rational numbers.

Hint:
   1.8 - [((-2.1 + 3.3)) - 2.02]
       First calculate the round bracket,
= 1.8 - [1.2 - 2.02]
       then the square bracket.
= 1.8 + 0.82
= 2.62


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Rational numbers
Problems with brackets -3-

Calculate the round bracket first!
 = 
Now the square bracket ↦ result.
 =  =
        

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