Subtracting Integers by Adding the Additive Inverse

This lesson teaches how to subtract integers by adding the additive inverse. It begins with a review of the concept of additive inverse, where two numbers add up to zero. The lesson covers rules for adding integers with the same and different signs, and explains the different interpretations of the minus symbol. It demonstrates subtracting integers using a number line by adding the opposite, and formalizes the concept of adding the additive inverse.

What is the result of adding two numbers with the same sign?

• Subtract their absolute values and use the opposite sign

• Add their absolute values and keep the same sign

• Subtract their absolute values and keep the sign of the larger number

• Add their absolute values and use the opposite sign

How should you handle adding numbers with different signs?

• Add their absolute values and use the sign of the smaller number

• Subtract their absolute values and use the sign of the larger number

• Subtract their absolute values and use the sign of the smaller number

• Add their absolute values and use the sign of the larger number

Which of the following is NOT a way to interpret the minus symbol?

• As a negative number

• As a subtraction sign

• As a positive number

• As the opposite of a number

In the problem 'negative 2 minus negative 5', what is the correct approach?

• Add 5 to 2

• Subtract 5 from 2

• Add 2 to 5

• Subtract 2 from 5

What is the result of 3 minus 7 using the additive inverse method?

• Positive 10

• Negative 4

• Positive 4

• Negative 10