3) \( -4.5 \times 5.4 \)

Did you know that multiplying negative and positive numbers comes with a rule? When you multiply a negative number by a positive number, the result is always negative. So, in our case \( -4.5 \times 5.4 \) will yield a negative product. It's like having a party invitation (the positive) but then receiving news that you can't go (the negative)—the outcome is a total bummer! Now, for the math wizards out there, you can simplify \( -4.5 \times 5.4 \) by ignoring the negative sign at first. Calculate \( 4.5 \times 5.4 = 24.3 \), and then just add back the negative sign, making it \( -24.3 \). Voilà! A quick and easy method to avoid any miscalculations in the future!