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

Example:
Hint:
126 - [4 + ((65 + 27)) + ((33 + 16))]
    Calculate the round brackets first,
    = 126 - [4 + 38 + 49]
    then the square bracket.
    = 126 - 91
35     

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Add and subtract in ℕ
Tasks with brackets -expert-

Calculate the round brackets first.

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

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