Question

which is the most accurate way to estimate 74% of 663? \\(\frac{3}{4} \times 670\\) \\(\frac{1}{5} \times 670\\) \\(\frac{3}{4} \times 660\\) \\(\frac{1}{5} \times 660\\)

Explanation:

Step1: Approximate percentage and number

• Approximate \(74\%\) to \(\frac{3}{4}\) (since \(\frac{3}{4}=0.75 = 75\%\) which is close to \(74\%\)).
• Approximate \(663\) to \(660\) (as \(663\) is closer to \(660\) than to \(670\)).

Step2: Calculate the product

The expression for the estimate is \(\frac{3}{4}\times660\).

Answer:

\(\frac{3}{4}\times660\)