Question

The times for Erin’s five laps around the track were 56.6 seconds, 57.9 seconds, 57.5 seconds, 65.3 seconds, and 65.7 seconds. Using rounding to the nearest whole second as the only estimation technique, what is the total estimated time for Erin’s five laps in seconds?

300
303
304
320

Answer 1

304 because you would add 57+58+58+65+66 because of rounding to the nearest whole second.