Multiplying Integers

This lesson teaches how to multiply two integers by first multiplying their absolute values and then determining the sign of the product. If both integers have the same sign, the product is positive; if they have different signs, the product is negative. The lesson includes examples to illustrate these rules: multiplying -2 by 5 results in -10, and multiplying -9 by -11 results in 99. The video concludes with a recap of these concepts.

What is the first step in finding the product of two integers?

• Subtract their absolute values

• Divide their absolute values

• Multiply their absolute values

• Add their absolute values

How do you determine the sign of the product when multiplying two integers with the same sign?

• The product is zero

• The product is the same as the larger integer

• The product is always positive

• The product is always negative

What is the product of -2 and 5?

• 5

• -10

• 10

• 0

When multiplying -9 and -11, what is the sign of the product?

• Zero

• Positive

• Negative

• Undefined

What is the result of multiplying -9 by -11?

• 0

• 20

• 99

• -99