Vocabulary (Mathematics)

decimal

Definition: A fraction (as .25 = 25/100 or .025 = 25/1000) or mixed number (as 3.025 = 3-25/1000) in which the denominator is a power of 10 usually expressed by use of the decimal point .

Context: We use decimals when we count money.

elapsed time

Definition: The actual time taken to complete a task.

Context: The amount of time it takes to complete a project is known as elapsed time.

equation

Definition: A mathematical statement of equality.

Context: Addition, subtraction, multiplication and division can be used in solving equations.

fraction

Definition: A numerical representation of a portion of a whole.

Context: One-fourth (1/4) and one-half (1/2) arefractions.

operation

Definition: The practical application of principles or processes; in mathematics, this refers to addition, subtraction, multiplication, or division.

Context: When solving word problems, the first step in finding the answer is determining whichoperationto use.

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