Question

Describe one possible way to estimate (without paper pencil and calculator) the value of 0.99804 x 32.785

Answer 1

One way of estimating this product is rounding each number to the nearest tenth first:

`\begin{gathered} 0.99804=1.0\\ \\ 32.785=32.8 \end{gathered}`

Then, the product of 32.8 and 1 is equal to 32.8, because every number multiplied by 1 is equal to itself.

Also, since the number 0.99804 is very close to 1, we can just keep the second value of the product, so the estimated result would be 32.785.