FTCE General Knowledge Math Practice Test

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What term is used to describe numbers that include zero and all positive integers?

Whole numbers
Natural numbers
Rational numbers
Irrational numbers

The correct answer is: Whole numbers

The term that is used to describe numbers that include zero and all positive integers is whole numbers. Whole numbers consist of zero (0), one (1), two (2), three (3), and so on, continuing infinitely. This set is distinct from natural numbers, which traditionally include only the positive integers (1, 2, 3, ...) and do not include zero. Rational numbers encompass all numbers that can be expressed as a fraction, including whole numbers, integers, and any terminating or repeating decimals. Irrational numbers are those that cannot be expressed as a simple fraction, meaning they cannot be written as a ratio of two integers; they include numbers like pi (π) and the square root of 2. Hence, the correct term for the specified numbers is whole numbers, as it accurately reflects the inclusion of both zero and all positive integers.