Lesson 9: Understanding of Subtraction with Negative Integers

Front

What is the additive inverse of a number?

Back

The additive inverse of a number is the value that, when added to the original number, results in zero. For example, the additive inverse of -5 is +5.

Front

How do you change a subtraction problem into an addition problem using the additive inverse?

Back

To change a subtraction problem into an addition problem, add the additive inverse of the number being subtracted. For example, -6 - (-5) becomes -6 + 5.

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Front

What does it mean when a number is negative in terms of debt or owing money?

Back

A negative number represents a debt or an amount owed. For example, if a customer has an account balance of -50, it means they owe $50.

Front

If a customer has an account balance of -30 and another has -50, who owes more?

Back

The customer with -30 owes less than the customer with -50, so the latter owes more.

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Front

What is the relationship between subtraction and addition with negative numbers?

Back