Number System and Integers

Front

What are whole numbers?

Back

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

Front

What are integers?

Back

Integers are whole numbers that can be positive, negative, or zero (..., -3, -2, -1, 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 natural numbers?

Back

Natural numbers are the counting numbers starting from 1 (1, 2, 3, ...).

Front

What is the relationship between whole numbers and integers?

Back

All whole numbers are integers, but not all integers are whole numbers.

Front

How do you classify the number -7.5?

Back

-7.5 is classified as a rational number and a real number.

Front

What is the result of multiplying a negative number by a positive number?

Back

The result is always a negative number.

Front

Are all whole numbers rational numbers?

Back

True, all whole numbers are rational numbers because they can be expressed as a fraction (e.g., 5 = 5/1).

Front

What is the definition of irrational numbers?

Back

Irrational numbers are numbers that cannot be expressed as a fraction of two integers, such as √2 or π.

Front

What is the sum of -3 and 5?

Back

The sum of -3 and 5 is 2.