Which is the best estimate for \( 19 \% \) of 205 40 50 100 400

To find \( 19\% \) of \( 205 \), you can first estimate by rounding \( 205 \) to \( 200 \) for simplicity. So, \( 19\% \) of \( 200 \) is approximately \( 0.19 \times 200 = 38 \). Among your options, \( 40 \) is the closest estimate! Another fun way to approach percentages quickly is to remember that \( 10\% \) is simply dividing by \( 10 \). So, \( 10\% \) of \( 205 \) is \( 20.5 \). Doubling that to account for nearly \( 20\% \) gives you \( 41 \), which again nudges you toward the nearest choice of \( 40 \). Remember, rounding cleverly can save you time and keep your math on point!