Question

Tammy has begun an exercise program. She worked out five days the first week for 28 minutes, 32 minutes, 21 minutes, 38 minutes and 42 minutes. Round each amount to the nearest 10 to find an estimate of the total number of minutes Tammy exercised during the week.

Answer 1

160 minutes.
If you were to round all the numbers and add them together, you would get 30 + 30 + 20 + 40 + 40, which equals 160.

Answer 2

160 minutes
If you round each number to the nearest 10th then add them you get 160 minutes

30+30+20+40+40 = 160