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# Numerical Concepts : Definitions

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Please explain or define these concepts.

1. Natural number

2. Multiplication

3. Subtraction

5. Commutativity

6. Associativity

7. Distributivity

8. Closure for multiplication

9. Contrast commutativity and associativity

https://brainmass.com/math/numerical-analysis/numerical-concepts-definitions-144008

#### Solution Preview

1. N = {1, 2, 3. .. } these are just the counting numbers

2. multiplication is a basic arithmetic operation

for natural numbers m, and n, multiplication of m and n is the repeated sum of the other number

mn = n + .. + n (m times)

equivalently,

mn = m + .. + m (n times)

3. subtraction is ...

#### Solution Summary

Concepts and definitions are provided. The solution is detailed and well presented. The response received a rating of "5/5" from the student who originally posted the question.

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