We can count 4 intervals of 5 minutes between the two times, so 4 x 5 = 20. The duration of time that has passed is 20 minutes. There are other ways we can break time down more quickly and ...

We can count 4 intervals of 5 minutes between the two times, so 4 x 5 = 20. The duration of time that has passed is 20 minutes. There are other ways we can break time down more quickly and ...