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Explain how to estimate the sum of the distances ran in the three months to the nearest kilometer.

A 2-column table with 3 rows titled Total Distance Andrea Ran (kilometers). Column 1 has entries March, April, May. Column 2 has entries 48.7, 31.2, 35.66.

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To estimate the sum of the distances ran by Andrea over three months (March, April, and May) to the nearest kilometer, you'll want to follow these steps:

  1. Identify the Distances: Based on the table provided, we have the following distances:

    • March: 48.7 km
    • April: 31.2 km
    • May: 35.66 km

  2. Round Each Distance: Since we need to estimate to the nearest kilometer, we will round each distance:

    • March:
      • 48.7 rounds to 49 km (since the decimal .7 rounds up).
    • April:
      • 31.2 rounds to 31 km (since the decimal .2 rounds down).
    • May:
      • 35.66 rounds to 36 km (since the decimal .66 rounds up).

  3. Add the Rounded Distances: Next, we sum the rounded distances:

    • 49 km (March) + 31 km (April) + 36 km (May) = 116 km.

  4. Final Estimate: Therefore, the estimated total sum of the distances Andrea ran over the three months, rounded to the nearest kilometer, is 116 kilometers.

By following this method of rounding each monthly distance to the nearest kilometer and then summing those values, you obtain a simple estimate of the total distance covered.