Unit 5 Rational Number Arithmetic

Front

What is the sum of 2.3 and -2.3?

Back

0

Front

What is the result of adding two negative numbers, such as (-3.7) and (-4.1)?

Back

The result is negative: (-3.7) + (-4.1) = -7.8

Front

What does it mean when a bank account balance is negative?

Back

It means that the account is overdrawn, and the account holder owes money to the bank.

Front

If a bank account has a balance of -40, what does that indicate?

Back

The account is overdrawn by 40 units.

Front

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

Back

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

Front

What is the definition of a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

What is the result of (-5) + 5?

Back

0

Front

How do you find the balance of a bank account after a transaction?

Back

You add the transaction amount to the current balance.

Front

What is the result of (-10) + (-15)?

Back

-25

Front

What does it mean to 'fill in the missing balance' in a bank account?

Back

It means to calculate the current balance based on previous transactions.