which expression gives the best estimate of the product of 281 x 2.16?

300 x 3
200 x 2
300 x 2
250 x 2

1 answer

To find the best estimate of the product of \( 281 \times 2.16 \), we can round the numbers to make the multiplication simpler.

  1. Round \( 281 \) to \( 300 \).
  2. Round \( 2.16 \) to \( 2 \).

Now, we multiply the rounded numbers:

\[ 300 \times 2 = 600 \]

Next, let's evaluate the other options to see how they compare as estimates:

  • \( 200 \times 2 = 400 \)
  • \( 300 \times 3 = 900 \)
  • \( 250 \times 2 = 500 \)

Among the options:

  • \( 300 \times 3 = 900 \)
  • \( 200 \times 2 = 400 \)
  • \( 300 \times 2 = 600 \)
  • \( 250 \times 2 = 500 \)

The best estimate given the options for \( 281 \times 2.16 \) is:

\[ \boxed{300 \times 2} \]

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