Question

Which equation has the correct sign on the product?

A. 90(-3) = 270
B. (-4)(-9) = -36
C. 52. 2 = 104
D. (-12)10 = 120

Answer 1

B.

Explanation:

A positive times a negative number equals a negative number, but a negative times a negative equals a positive number

Answer 2

C) 52 x 2 = 104

Remember:

Positive x positive = positive

Negative x negative = positive

Positive x negative = negative

Negative x positive = negative