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 different signs?

Back

To add two rational numbers with different signs, subtract the absolute values and keep the sign of the number with the larger absolute value.

Front

What is the result of adding a positive rational number and a negative rational number?

Back

The result can be positive, negative, or zero, depending on the absolute values of the numbers being added.

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 non-negative.

Front

How do you subtract a rational number from another rational number?

Back

To subtract a rational number, add its opposite. For example, to compute a - b, you can compute a + (-b).

Front

What is the result of adding two negative rational numbers?

Back

The result of adding two negative rational numbers is always negative.

Front

What is the result of subtracting a negative rational number from a positive rational number?

Back

Subtracting a negative rational number is the same as adding its positive counterpart, which can result in a larger positive number.

Front

If the temperature is -5 degrees and it rises by 3 degrees, what is the new temperature?

Back

The new temperature is -2 degrees.

Front

What is the sum of -10 and 7?

Back

The sum of -10 and 7 is -3.

Front

If you have $50 and you owe $20, what is your net amount?

Back

Your net amount is $30.