Math topics
Math a-z
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German
Math topics
Math a-z
News
German
×
Natural numbers
»
At the start of the website an
addition problem
was created with three natural numbers.
Your task now is to
determine the result.
If you are skillful,
you can use
arithmetic laws
.
Click on
check
to check your answer.
Click on
new
to create a new problem.
Can you top
395 points
?
Adding natural numbers
Apply arithmetic laws -1a-
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Associative Law
When adding, you may place parentheses as you wish without changing the result:
((30 + 23)) + 47 = 30 + ((23 + 47))
53 + 47 = 30 + 70
100 = 100
General:
((a + b)) + c = a + ((b + c))
a,b,c ∈ ℕ
_{0}
Commutative Law
When adding, you can swap the order of the summands as much as you want without changing the result:
58 + 42 = 42 + 58
100 = 100
General:
a + b = b + a
a,b ∈ ℕ
_{0}