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Math topics
Math a-z
News
German
×
Natural numbers
»
At the start of the web page a
problem
with natural numbers was created.
Your task is
to specify the missing number in place of x.
If you are clever
you can use the
distributive law
.
Click on
check
to check your answer.
Click on
new
to create a new problem.
Can you top
395 points
?
Topic:
Natural numbers
Apply arithmetic laws -4-
Which number is
x
?
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Distributive Law -1-
Each value in the brackets is multiplied by the factor in front of the brackets.
3 × 17 + 3 × 13 = 3 × ((17 + 13))
51 + 39 = 3 × 30
90 = 90
General:
a × b + a × c = a × ((b + c))
a,b,c ∈ ℕ
_{0}
Distributive Law -2-
Each value in the brackets is multiplied by the factor in front of the brackets.
8 × 27 - 8 × 17 = 8 × ((27 - 17))
216 - 136 = 8 × 10
80 = 80
General:
a × b - a × c = a × ((b - c))
a,b,c ∈ ℕ
_{0}