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
To estimate the total time for Erin's five laps, we can round each individual lap time to the nearest whole second and then add them all together.
Rounding 56.6 to the nearest whole second gives 57.
Rounding 57.9 to the nearest whole second gives 58.
Rounding 57.5 to the nearest whole second gives 58.
Rounding 65.3 to the nearest whole second gives 65.
Rounding 65.7 to the nearest whole second gives 66.
Adding these rounded times together, we get: 57 + 58 + 58 + 65 + 66 = 304.
Therefore, the total estimated time for Erin's five laps is 304 seconds.
The answer is 304 seconds.