Integers   »      

At the start of the site a magic square was created, in which three numerical values are given.
Add the missing values, so that applies:
       The sum of each row
    = the sum in each column
    = the sum in each diagonal.

Note:
Each number may be used only once
in the Magic Square.

Click on  check  to check your answer.
Click on  new  to create a new problem.
Can you top 295 points?



Magic square expert
for adding integers
Complete the square!
Note that each number
may be used only once!
 
 
        

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  • Addition - Help
    - Rule for same signs
    ((-3)) + ((-5)) = -8
    ((+3)) + ((+5)) = +8
    Add the absolute values of the numbers.
    The result gets the common sign.
    - Rule for different signs
    ((-8)) + ((+5)) = -3
    ((-6)) + ((+9)) = +3
    Subtract the absolute values of the numbers.
    The result gets the sign of the larger absolute value.