Number Systems

Front

What is a number system?

Back

A number system is a way of expressing numbers using a consistent set of symbols and rules. Common number systems include natural numbers, whole numbers, integers, rational numbers, and real numbers.

Front

What are positive numbers?

Back

Positive numbers are numbers that are greater than zero. They are located to the right of zero on the number line.

Front

What are negative numbers?

Back

Negative numbers are numbers that are less than zero. They are located to the left of zero on the number line.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero. Examples include -3, 0, and 5.

Front

How do you order numbers from least to greatest?

Back

To order numbers from least to greatest, compare their values and arrange them starting from the smallest to the largest.

Front

What is the area of a shape?

Back

The area of a shape is the amount of space inside that shape, usually measured in square units.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and denominator are integers, and the denominator is not zero.

Front

What is a whole number?

Back

Whole numbers are non-negative numbers without fractions or decimals, including zero. Examples are 0, 1, 2, 3.

Front

What is the difference between a fraction and a decimal?

Back

A fraction represents a part of a whole, expressed as a numerator over a denominator, while a decimal represents a part of a whole using a point to separate the whole number from the fractional part.

Front

What is the number line?

Back

A number line is a straight line that represents numbers in order, with positive numbers to the right of zero and negative numbers to the left.