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 of equal size, they will essentially cancel out each other and sum to zero.
Continue ReadingIf a large negative number is added to a small positive number, such as -10 and 1, the answer will be a negative number, which is -9 in this case. Similarly, a large positive number added to a small negative number will result in a positive number. This is unlike multiplication in which a negative number multiplied by a positive number will always result in a negative number.
Learn more about AlgebraThe congruent sign is a symbol used in geometry to indicate that two figures have the same size and shape. The sign consists of two parallel, horizontal lines topped by a single slightly wavy line. This is a combination of the "equal" sign and the "similar" sign.
Full Answer >The positive number factors of the number 63 are: 1, 3, 7, 9, 21, and 63. The easiest way to find the factors of a number is through a series of equations that use basic division.
Full Answer >Pi is an irrational number because no simple fraction can represent it. The square root of pi is also an irrational number. The square root of pi can never be written to its last digit, but it can be rounded or abbreviated.
Full Answer >"Sig fig" is an informal abbreviation of the math, science term "significant figures," which is a way of expressing the accuracy of a number or measurement. The rules for significant figures in addition are simple. Because one cannot claim more accuracy than the least accurate number being added, the significant figures in the sum equals that of the number with the smallest amount of significant figures.
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