The result of a adding a positive number and a negative can either be a negative number or a positive number, depending on the sign of the biggest number. If the sign of the larger number is negative, then the result is ... More » Math Arithmetic

Negative numbers are real numbers. The set of real numbers includes all the numbers that can be shown on a number line including both positive and negative numbers. More » Math Numbers

A negative number added to a positive number can sum up to either a positive number, negative number or zero, depending on the size of the two numbers added together. When a positive number is added to a negative number ... More » Math Algebra
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Multiplying two numbers with like signs, either two positive numbers or two negative numbers, yields a positive number. Numbers not preceded by a sign are considered positive. Those numbers preceded by a minus sign, some... More » Math Arithmetic

A number to the power of negative one is equal to one over that number. For example, five to the negative one power equals one over five, or 1/5. More » Math Arithmetic

Integers with the same sign are added and the sum takes the sign of the integers, while integers with different signs are subtracted and the difference takes the sign of the number with the highest absolute value. The se... More » Math Arithmetic

A fraction is converted to a percentage by first expressing the fraction with a denominator of 100, then writing the numerator with a percent sign behind it. Some fractions can be easily converted if basic ratio equivale... More » Math Arithmetic