Final answer:
When multiplying or dividing signed numbers, follow the rules: same signs result in positive, different signs result in negative. Using these rules, we can solve the given expressions.
Step-by-step explanation:
In order to multiply or divide signed numbers, follow these rules:
- When multiplying two numbers with the same sign, the answer is positive.
- When multiplying two numbers with different signs, the answer is negative.
- When dividing a number by another number, the sign of the answer depends on whether the signs of the numbers being divided are the same or different.
Using these rules, we can solve the given expressions:
a. -8 × 6 = -48
b. (-5) × (-8) × (-6) = -240
c. (-3.2) × (-2.5) = 8
d. 81 ÷ (-9) = -9
e. (-81) ÷ (-9) = 9
f. (-24) ÷ (-3) = 8