The reciprocal of a negative number is also a negative number because when the two numbers are multiplied the answer is 1. For example, the reciprocal of -6 is -1/6, and the product of these two numbers is -6 x (-1/6)= 1... More »

The reciprocal of 3 is the fraction, one third or, in decimal, 0.3 recurring. A reciprocal is essentially a fraction that is inverted or "flipped" and the fraction of 3 is 3 over 1. The reciprocal of 3 over 1 is 1 over 3... More »

Reciprocals are two numbers that have one as their product when multiplied with each other. They are most often expressed as proper or improper fractions. More »

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The answer to the riddle "From what number can you take half and leave nothing?" is the number 8, because when either the top or bottom half of the digit is removed, the remaining half forms the number zero, or nothing. More »

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Rounding to two decimal places means leaving only two numbers to the right of the decimal point. When the number in the third decimal place is any number between zero and four, round to two decimal places by deleting eve... More » Math Numbers