Multiplying with Positive and Negative Integers

Positive x Negative =

• Positive
• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Positive x Positive

• Positive 
• Negative 

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

-7 x 4

• 24
• 28
• -28
• -24

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

-5 x -8

• -40

• -13

• -45

• 40

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

• Positive

• Negative

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

Will the answer to this expression be positive or negative?

(-8) x (-1) x (-9) x (-5) x (-2)

• Positive, because there are an even number of negative numbers.

• Positive because there are an odd number of negative numbers.

• Negative, because there are an even number of negative numbers.

• Negative because there are an odd number of negative numbers.

Tags

CCSS.7.NS.A.2A

Will the answer to this expression be positive or negative?

(-5) x (-6) x (-2) x (-3)

• Positive, because there are an even number of negative numbers.

• Positive because there are an odd number of negative numbers.

• Negative, because there are an even number of negative numbers.

• Negative because there are an odd number of negative numbers.

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

(-2) x (-2) x (-2)

• 8

• -8

• -6

• 6

Answer explanation

There are THREE negative numbers. (-2) x (-2)= 4 because SAME SIGN POSITIVE. multiply again by -2.... 4 x (-2)= -8 because DIFFERENT SIGN NEGATIVE

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

(-2) x (-2) x (-2) x (-2)

• 16

• -16

• -8

• 8

Answer explanation

There is an EVEN number of negative numbers so the answer will be NEGATIVE.

(-2) x (-2) x (-2) x (-2)

= 4 x 4

=16

Tags

CCSS.7.NS.A.2C