Lesson

Can you convert units of time?

It takes around 300 minutes to drive from Sydney to Thredbo. How many hours is this?

Worked Solution

Idea summary

Remember:

\begin{aligned} 1\text{ Week} &= 7\text{ Days}\\ 1\text{ Day} &= 24\text{ Hours}\\ 1\text{ Hour} &= 60\text{ Minutes}\end{aligned}

This video looks at calculating passing time in minutes and hours and seconds.

Find the value of 5 hours 10 minutes - \, 2 hours 40 minutes.

Worked Solution

Idea summary

We can use subtraction to find the difference between times, but we have to be careful when we need to regroup and remember:

\displaystyle 1 \text{ hour} | \displaystyle = | \displaystyle 60 \text{ minutes} |

\displaystyle 1 \text{ minute} | \displaystyle = | \displaystyle 60 \text{ seconds} |

This video looks at days, weeks and years.

Answer the questions below to find the number of hours in 6 months. You may assume there are 30 days in a month.

a

Convert 6 months into days.

Worked Solution

b

Convert 180 days into hours.

Worked Solution

Idea summary

There are 60 seconds in 1 minute.

There are 60 minutes in 1 hour.

There are 24 hours in 1 day.

There are 365 days in 1 year.

Measure, calculate and compare elapsed time