d. Divide 5.5 by 3 and round the answer to three decimal places.

The result of dividing 5.5 by 3 is approximately 1.8333. When we round this number to three decimal places, we look at the fourth decimal to determine how to round. Since the fourth decimal is a 3, we keep the third decimal as is, which results in 1.833. Did you know that rounding numbers has a rich history? Ancient mathematicians used rounded numbers when estimating measurements for construction, such as the Great Pyramids of Giza! Rounding down and simplifying numbers helped them work more efficiently and avoid complex calculations, proving that sometimes, less is more. In real-world applications, rounding is a crucial skill! Think about budgeting—when estimating monthly expenses or calculating discounts, rounding can help you quickly gauge your financials without getting lost in the exact numbers. Just remember, when rounding, always check the digits that follow to get the most accurate result!