Multiplying and Dividing Signed Numbers


Math A	Multiplying and Dividing Signed Numbers

Rules:

	Multiplying ... The product of two numbers with the same signs is positive. The product of two numbers with different signs is negative.
	Dividing ... The quotient of two numbers with the same sign is positive. The quotient of two numbers with different signs is negative.

Examples: Perform the indicated operations:
1. (+3) (–5) = -15	5. – 12 (-3) = 4
2. (–8) (7) = -56	6. –27 3 = -9
3. (–6) (-5) = 30	7. –6 (-8) = 0.75
4. (+4) (+3) = 12	8. –18 / 2 = -9

9. Multiply (-5) by (-3).
(-5) x (-3) = +15

10. Divide (-24) by (+6).
(-24) / (+6) = -4

	Roberts