Operations with 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

What is the result of multiplying two negative rational numbers?

Back

The result is a positive rational number.

Front

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

Back

The result is a negative rational number.

Front

How do you add two rational numbers with different signs?

Back

Subtract the absolute values and take the sign of the number with the larger absolute value.

Front

What is the process for subtracting rational numbers?

Back

To subtract a rational number, add its opposite.

Front

What is the result of dividing a negative rational number by a positive rational number?

Back

The result is a negative rational number.

Front

How do you find the total effect of repeated deductions from a paycheck?

Back

Multiply the amount deducted by the number of paychecks.

Front

What is the formula for finding the final temperature after several changes?

Back

Start with the initial temperature and add or subtract the changes in temperature sequentially.

Front

What is the result of -6.3 * -0.6?

Back

3.78

Front

If the temperature drops from 3 degrees Celsius by 12 degrees, what is the new temperature?

Back

-9 degrees Celsius.