Multiplication of Positive and Negative Numbers

Mrs. Nelson introduces a seventh-grade math lesson focused on multiplying rational numbers. The lesson reviews multiplication rules for positive and negative numbers, helping students determine the sign of products. Students learn to match expressions with equal products, using examples to reinforce understanding. The lesson concludes with a summary of key points and a reference to a previous lesson.

What is the main objective of this lesson?

• To learn addition of rational numbers

• To solve problems involving multiplying rational numbers

• To understand division of rational numbers

• To explore subtraction of rational numbers

What happens when you multiply two positive numbers?

• The result is undefined

• The result is positive

• The result is zero

• The result is negative

What is the result of multiplying two negative numbers?

• Undefined

• Negative

• Zero

• Positive

If you multiply a positive number by a negative number, what is the result?

• Positive

• Negative

• Zero

• Undefined

What is the outcome when a negative number is multiplied by a positive number?

• Undefined

• Zero

• Negative

• Positive

How many negative numbers multiplied together result in a negative product?

• One

• Two

• Three

• Four

What is the result of multiplying a negative number by a negative number?

• Undefined

• Positive

• Negative

• Zero

What is the result of multiplying a positive number by a positive number?

• Zero

• Negative

• Positive

• Undefined

What is the result of multiplying three negative numbers together?

• Undefined

• Negative

• Positive

• Zero

What is the result of multiplying a negative number by a positive number and then by another negative number?

• Undefined

• Negative

• Zero

• Positive