Question

Thad ran his part of the race in 15.95 seconds, greg ran his part in 13.087 seconds and mike ran his part in 11.827 seconds. what is the difference between how fast mike and thad ran their race?

Answer 1

Thad ran in 15.95 seconds
Mike ran in 11.827 seconds

the difference means subtract

15.95 - 11.827 = 4.123 seconds <==