Rational Numbers check point 2.2

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

When adding two rational numbers with different signs, subtract the absolute values and take the sign of the number with the larger absolute value.

Front

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

Back

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

Front

How do you subtract rational numbers?

Back

To subtract rational numbers, add the opposite of the number being subtracted to the first number.

Front

What is the process for multiplying two rational numbers?

Back

To multiply two rational numbers, multiply their numerators together and their denominators together.

Front

What happens when you multiply a rational number by zero?

Back

The result is always zero, regardless of the value of the rational number.

Front

How do you divide rational numbers?

Back

To divide rational numbers, multiply by the reciprocal of the divisor.

Front

What is the significance of negative signs in rational numbers?

Back

Negative signs indicate the opposite value; a negative rational number is less than zero.

Front

How do you convert a negative temperature to a positive temperature?

Back

To convert a negative temperature to a positive temperature, take the absolute value of the negative number.

Front

What is the relationship between rational numbers and real numbers?

Back

All rational numbers are real numbers, but not all real numbers are rational.