Q:

How would you use negative numbers in everyday life?

A:

Some examples of uses of negative numbers in everyday life are calculating the price paid for a service or determining the amount of weight lost. Negative numbers are present in all day-to-day activities that use subtraction or that compute a loss of any kind. Using negative numbers in many circumstances is largely a matter of keeping track of what items must be subtracted instead of added.

Negative numbers function just like positive numbers in many ways. They can be put through all basic arithmetic operations and can even be used to find areas and angles in practical geometry.

In situations in which something is spent or reduced, a negative number can often be used. For example, if a boy took $20 from his grandmother, he might use part of it to buy 3 packs of cards, each worth $2.50. The equation can be written as basic subtraction, as in 20 - 3*(2.50) = 20 - 7.50 = 12.50) or as multiplication of a negative number, as in 20 + 3*(-2.50) = 20 + (-7.50) = 12.50.

The use of negative numbers follows a few basic rules. Adding a negative number is the same as subtracting a positive, as in 4 + (-3) = 4 - 3. Subtracting a negative number is the same as adding a positive, as in 5 - (-2) = 5 + 2. Multiplying or dividing an odd quantity of negative numbers produces a negative result. Multiplying or dividing an even quantity of negative signs produces a positive result.

Learn More

Related Questions

  • Q:

    What does 777 mean?

    A:

    The number 777 has strong meanings in numerology, which is the spiritual study of numbers, and its meaning deal with both introspection and creative self-expression. To fully determine the meaning of 777, a numerologist should be present.

    Full Answer >
    Filed Under:
  • Q:

    What are real-life uses of imaginary numbers?

    A:

    According to the university of Toronto, there are a variety of uses for imaginary numbers in the real world, most notably in the fields of electrical engineering and measuring natural phenomena. An electromagnetic field, for example, requires imaginary numbers to measure because the strength of the field is determined by both electrical and magnetic components that must be combined into a single complex imaginary number to get an accurate measurement.

    Full Answer >
    Filed Under:
  • Q:

    What is the highest number known to man?

    A:

    In reality there is no answer to the question: What is the highest number known to man? With the addition of 1, any number presented as the largest can be made obsolete. In the abstract, numbers stretch on to infinity with no end to how high they can go; however, the largest number that has a name in the English language is googleplex.

    Full Answer >
    Filed Under:
  • Q:

    What do cations represented by Roman numerals indicate?

    A:

    The Roman numerals found in the names of some chemical compounds indicate that the cation has a variable charge. The Roman numeral nomenclature helps in identifying which particular oxidation number of the cation was used in the compounds.

    Full Answer >
    Filed Under:

Explore