Subtracting Integers

This video tutorial teaches how to subtract integers using integer chips and the 'keep, change, opposite' rule. It begins by connecting subtraction to addition, emphasizing the importance of understanding addition rules. The lesson models subtraction with integer chips, demonstrating both same-sign and different-sign scenarios. The tutorial concludes with a rule for subtracting integers without chips, encouraging practice and mastery of the concept.

Why is it important to understand the rules for adding integers before learning to subtract them?

• Because subtraction rules are not important.

• Because addition is more difficult than subtraction.

• Because subtracting integers is directly related to adding them.

• Because subtraction is the same as addition.

What does a yellow integer chip represent?

• A positive 2

• Zero

• A positive 1

• A negative 1

What is the result of subtracting two positive integers, such as 3 - 2?

• Positive 5

• Negative 1

• Positive 1

• Zero

How do you handle subtraction when you have different signs, such as subtracting a negative from a positive?

• Ignore the negative sign.

• Add the numbers together.

• Subtract directly without any changes.

• Add zero pairs to balance the equation.

What is a zero pair in the context of integer chips?

• Two positive chips

• Two chips of any color

• Two negative chips

• One positive and one negative chip

What is the rule for subtracting integers?

• Change the subtraction sign to addition and add the opposite.

• Subtract the smaller number from the larger one.

• Always add the numbers.

• Ignore the signs and subtract directly.

When using the rule for subtracting integers, what should you do with the subtraction sign?

• Change it to a division sign.

• Leave it as it is.

• Change it to an addition sign.

• Change it to a multiplication sign.

If you have two integers with different signs, how do you determine the sign of the result?

• The result is always negative.

• The result is always positive.

• The sign of the smaller absolute value determines the result.

• The sign of the larger absolute value determines the result.

What is the result of 6 subtract 15 using the rule for subtracting integers?

• Positive 21

• Zero

• Negative 9

• Positive 9

What is the result of subtracting -5 from 5?

• Positive 10

• Zero

• Positive 5

• Negative 10