Andrea totaled the distance she ran on Monday, Tuesday, and Wednesday. Her sum is 14.225.
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.
Rounding to the nearest whole kilometer, determine whether Andrea’s sum is reasonable.
Round Monday’s distance to
.
Round Tuesday’s distance to
.
Round Wednesday’s distance to
.
Was Andrea’s sum reasonable?
Round Monday’s distance to 4 km.
Round Tuesday’s distance to 5 km.
Round Wednesday’s distance to 6 km.
Andrea’s sum is 4 km + 5 km + 6 km = 15 km.
Since Andrea’s sum is 15 km and the rounded sum is 14 km, her sum is not reasonable.