The condition or quality of being true, correct, or exact; precision; exactness. The degree of correctness of a quantity or expression.
Also referred to as the English system of measuring. The measuring system based on the foot, second, and pound as units of length, time, weight, or mass.
Divisor; the number below the line in a fraction.
A measuring tool with two usually adjustable jaws used especially to measure thickness or diameter.
A straight line passing from side to side through the center of a circle or sphere.
Collecting data in a quantifiable manner.
The decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass.
A gauge which measures small distances or thicknesses.
The number above the line in a fraction showing how many of the parts indicated by the denominator is taken.
The degree to which several measurements or calculations show the same or similar results.
A standard quantity in terms of which other quantities may be expressed.