Which expression gives the best estimate of 30 percent of 61?

Question

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Answer 1

To find 30 percent of 61, you can calculate it as follows:

1. Convert 30 percent to a decimal: $30$.
2. Multiply: $0.30\times 61=18.3$.

To provide an estimate, we can consider rounding 61 to a nearby number that is easier to work with and calculate 30 percent of that.

We can round 61 to 60, as it is a simpler number. Then calculate:

$30$ of $60=0.30\times 60=18$.

This means an estimate of 30 percent of 61 can be expressed as 18.

Now, if we examine the expressions that may have been presented (labeled mc019-1 through mc019-4), look for an option that comes out to around 18. If none of those are identified here, it could be assumed that your choices should include something similar to the calculations above.

If you can provide the expressions from the options, I can help determine which one gives the best estimate.