Problem 12 of 7
Compute 1.23 m + 4.56 m + 7.89 m. Round the result to the nearest hundredth of a meter because the measurements were recorded to that precision.
Hints
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use measurement precision to choose decimals.
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Exact value must round unambiguously to requested precision.
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Correct
Your answer is equivalent to the expected form.
Solution
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1. Calculate the exact result.
2. Round to the requested precision and attach the unit.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Extra unjustified decimal places.