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Related to Concrete Number: Abstract numbers
a number that is accompanied by the name of a unit of measure (for example, 5 m, 7 kg); it is contrasted with an abstract number (for example, 5, 7). A concrete number is termed simple if it includes only one unit of measure and compound if it includes several units of measure. For example, the concrete number 3 m 67 cm is compound, but the equivalent concrete number 367 cm is simple.