Look at Andrea’s running journal.

Question

A 2-column table with 3 rows titled Total distance Andrea Ran (kilometers). Column 1 has entries Monday, Tuesday, Wednesday. Column 2 has entries 3.6, 4.705, 5.92.

Explain how to add the three distances.

Answer 1

To add the three distances that Andrea ran, you'll want to follow these steps:

1. Write down the distances: You have three distances in kilometers:

   • Monday: 3.6 km
   • Tuesday: 4.705 km
   • Wednesday: 5.92 km

2. Align the numbers: To make it easier to add them, align them by their decimal points:

       3.600
     + 4.705
     + 5.920
   

3. Add in columns: Start adding from the rightmost side (the thousandths place) to the leftmost side (the whole numbers):

   • Thousandths: 0 + 5 + 0 = 5
   • Hundredths: 0 + 0 + 2 = 2
   • Tenths: 6 + 7 + 9 = 22 (write down 2 and carry over 2 to the next column)
   • Units: 3 + 4 + 5 + 2 (the carry over) = 14

4. Write the sum: Once you've completed the addition, combine the results. The total is:

   • 14.225 km

Therefore, the total distance Andrea ran over the three days is 14.225 kilometers.