Ordering and Comparing Real Numbers

Front

What is a real number?

Back

A real number is any number that can be found on the number line. This includes both rational numbers (like integers and fractions) and irrational numbers (like √2 and π).

Front

How do you compare two real numbers?

Back

To compare two real numbers, you can use the symbols < (less than), > (greater than), or = (equal to). You can also visualize them on a number line.

Front

What does it mean to order real numbers?

Back

Ordering real numbers means arranging them from least to greatest or greatest to least based on their value.

Front

What is scientific notation?

Back

Scientific notation is a way of expressing numbers that are too large or too small to be conveniently written in decimal form. It is written as a number between 1 and 10 multiplied by a power of 10.

Front

How do you convert a percentage to a decimal?

Back

To convert a percentage to a decimal, divide the percentage by 100. For example, 25% becomes 0.25.

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always a non-negative value.

Front

How do you find the greatest common factor (GCF) of two numbers?

Back

To find the GCF, list the factors of each number and identify the largest factor that appears in both lists.

Front

What is a fraction?

Back

Front

How do you add fractions with different denominators?

Back

To add fractions with different denominators, first find a common denominator, convert each fraction, and then add the numerators.

Front

What is a decimal?

Back

A decimal is a way of representing fractions in a base-10 system, using a decimal point to separate the whole number part from the fractional part.