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# What is a number model in math?

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### Quick Answer

A number model in math is a sentence that illustrates how the parts of a number story are related. The equation may include addition, subtraction, division and multiplication and may be expressed as words or in number form.

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### Full Answer

Number models expressed in number form include 6 + 7 = 13, 12 * 6 = 72 and 24 / 3 = 8. An example of a number model written in words would be, "The area of rectangle A is equal to the product of sides D and E." The same equation can be expressed in numbers as area = d * e.

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## Related Questions

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According to MathGoodies.com, zero is a neutral number or integer since it is neither negative nor positive. Whole numbers to the right of zero, or greater than zero, are known as positive integers. Whole numbers to the left of zero, or less than zero, are known as negative integers.

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Friendly numbers are individual numbers that make up part of what is known as a friendly pair. Friendly numbers always come in sets of two, and they are known for having a positive density.

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In math, zero is considered to be an even number. In order to be even, a number must be able to be divided exactly by two. Zero qualifies because zero divided by two equals zero.

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The significance of the number 23 is mostly created by pop culture, although speculation about its mystical importance has existed for centuries. The 2007 mystery-thriller film called "The Number 23" starring Jim Carrey was created in recognition of the number's meaning, according to /Film.

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