Multiplying & Dividing Rational Numbers

What is the sign of:

the product of two positive numbers?

• Positive

• Negative

• Zero

What is the sign of:

Two numbers with opposite signs?

• Positive

• Negative

• Zero

(2.5)(-1.2)

• -3.7

• 3.7

• 3

• -3

(-4.2)(-5)

• 21

• -21

• -9.2

• -1.2

45.1 x 7

• 335.7

• 315.7

• 3,357

• 3.157

(-3.9) x (2.8)

• 1.092

• -1.092

• -10.92

• 10.92

-1/3 x 2/5

• -3/8

• 2/15

• -2/15

• -1/15

• -32/9

• 6/45

• 32/9

• -6/45

Find the product.

-⅔ x (-12)

• 4

• -6

• 8

• -24

Multiply

• 5 / 18
• 16 / 15
• 28 / 9
• 4 / 9