Understanding Negatives and Opposites

The video tutorial explains how to interpret negative signs in mathematical expressions. It introduces the concept of viewing a negative sign as an opposite and demonstrates how double negatives result in a positive. The tutorial further explains that an even number of negatives results in a positive outcome, while an odd number results in a negative. A shortcut for handling multiple negatives is also provided, making calculations easier. The lesson concludes with a summary of these concepts.

How can we interpret the expression '-5'?

• As the opposite of positive 5

• As positive 5

• As the opposite of negative 5

• As positive 10

Tags

CCSS.7.NS.A.1B

What is the result of the expression '-(-3)'?

• Negative 3

• Zero

• Positive 3

• Negative 6

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What happens when there is an even number of negative signs in an expression?

• The result is negative

• The result is undefined

• The result is positive

• The result is zero

Tags

CCSS.7.NS.A.2C

If an expression has three negative signs, what will the result be?

• Undefined

• Zero

• Negative

• Positive

Tags

CCSS.7.NS.A.1B

What is the result of the expression '-(-1)'?

• Zero

• Positive 1

• Negative 1

• Positive 2

Tags

CCSS.7.NS.A.2C

How does the shortcut help when dealing with multiple negatives?

• It makes the result always positive

• It makes the result always negative

• It makes the calculation slower

• It helps to quickly determine if the result is positive or negative

Tags

CCSS.7.NS.A.2C

What is the result of an expression with four negative signs?

• Zero

• Negative

• Positive

• Undefined

Tags

CCSS.7.NS.A.2C