Classifying Real Numbers Review

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero. Examples include -3, -2, -1, 0, 1, 2, 3.

Front

Is 74.8̅ a natural number?

Back

No, 74.8̅ is not a natural number because natural numbers are positive whole numbers starting from 1.

Front

Is 2 a natural number?

Back

True, 2 is a natural number.

Front

Is 0.89 a rational number?

Back

True, 0.89 is a rational number because it can be expressed as a fraction (89/100).

Front

Which word does NOT describe the number 5?

Back

Irrational. The number 5 is a whole number, integer, and rational number.

Front

What are natural numbers?

Back

Natural numbers are the set of positive whole numbers starting from 1 (1, 2, 3, ...).

Front

What are whole numbers?

Back

Whole numbers are all non-negative integers, including zero (0, 1, 2, 3, ...).

Front

What are rational numbers?

Back

Rational numbers are numbers that can be expressed as a fraction of two integers, where the denominator is not zero.

Front

What are irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a fraction of two integers. Examples include √2 and π.

Front

Is -5 an integer?

Back

Yes, -5 is an integer.