Adding and Subtracting Rational Numbers.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

Front

How do you add two rational numbers with the same denominator?

Back

To add two rational numbers with the same denominator, you add the numerators and keep the denominator the same.

Front

How do you subtract two rational numbers with the same denominator?

Back

To subtract two rational numbers with the same denominator, you subtract the numerators and keep the denominator the same.

Front

What is the formula for adding rational numbers with different denominators?

Back

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

Front

What is the formula for subtracting rational numbers with different denominators?

Back

To subtract rational numbers with different denominators, find a common denominator, convert each fraction, and then subtract the numerators.

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, and is always non-negative.

Front

How do you find the difference between two temperatures?

Back

To find the difference between two temperatures, subtract the lower temperature from the higher temperature.

Front

What does a negative result indicate when calculating temperature change?

Back

A negative result indicates a decrease in temperature.

Front

How do you represent a debt in terms of integers?

Back

A debt is represented as a negative integer, indicating a loss or a decrease in value.

Front

What is the significance of zero in rational numbers?

Back

Zero is a rational number that represents a neutral point on the number line, indicating no value or change.