Natural numbers   »      
Add and subtract natural numbers
Special problems with brackets

 Example:
Hint:
132 - [171 - ((58 + 25))]
    Calculate the round bracket first,
    = 132 - [171 - 83]
    then the square bracket.
    = 132 - 88
= 44     

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Can you top 295 points?


Add and subtract in ℕ
Tasks with brackets -4-

Calculate the round bracket first.
=
Then calculate the square bracket.
=
The result gets 20 points more.
=
 
 
        

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