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 does it mean for a bank account to be overdrawn?

Back

An overdrawn bank account means that the account balance is below zero, indicating that the account holder has withdrawn more money than is available.

Front

How do you add a positive and a negative number?

Back

To add a positive and a negative number, subtract the absolute value of the negative number from the positive number. The sign of the result will be the sign of the number with the larger absolute value.

Front

What is the result of -5.7 + 0.9?

Back

-4.8

Front

How do you multiply two negative numbers?

Back

When you multiply two negative numbers, the result is a positive number.

Front

What is the product of -6.3 and -0.6?

Back

3.78

Front

What is the process to subtract a negative number from a positive number?

Back

Subtracting a negative number is the same as adding its absolute value to the positive number.

Front

What is the result of -32 + 100?

Back

68

Front

How do you find the temperature after cooling a substance?

Back

To find the new temperature after cooling, subtract the cooling amount from the initial temperature.

Front

What is the new temperature of sodium gas cooled from -78.5°C by 194.65°C?

Back

-273.15°C