Natural numbers   »      

At the start of the website a star with natural numbers was created.


Complete the number star.
Find the fourth summand so that the sum is in the center of the star.

Pay attention to arithmetic advantages!

Click on  check  to check your answer.

Click on  new  to create a new problem.

Can you top 395 points?

Number star -level 3- for
addition of natural numbers

What is the missing summand?

... more than just practicing

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