Bailey and Elena compete in a swim race. Their times are shown below. Round each time to the nearest whole second. Then estimate how many seconds Bailey won the race byBailey: 35.78 seconds Elena: 39.51 seconds

The whole second is the first number to the left of the decimal (_.)

So, 35.78 = 36 because 7>5.

39.51 = 40 because 5 = 5.

40 - 36 = 4.

Bailey won the race by about 4 seconds.