# Time Arithmetic

## Practise adding, subtracting, multiplying and dividing times with these self-marking exercises.

This is level 4: Division. You will be awarded a trophy if you get at least 5 correct and you do this activity online.

Type in your answers in hours and minutes using a colon to separate the hours and minutes for example 1:05 for one hour and five minutes.

 1 Divide four hours and twenty eight minutes by four giving your answer in hours and minutes.4:28 ÷ 4 ☐ ☐ ✓ ✗ 2 Five friends hire a jet ski for 8 hours and 20 minutes. They want to share that time equally between the five of them. How much time will they have each? ☐ ☐ ✓ ✗ 3 Divide twenty hours and twenty four minutes by eight giving your answer in hours and minutes.20:24 ÷ 8 ☐ ☐ ✓ ✗ 4 A new movie was shown five times on repeat. It took 13 hours and 0 minutes. What was the running time of the movie? ☐ ☐ ✓ ✗ 5 Kully started work at 11:20am and finished at 5:35pm? During that time he wrote five programs on his computer. What was the average time taken to write one program? ☐ ☐ ✓ ✗ 6 Lilly started work at 5:20am and finished at 9:20pm? During that time she built ten bird boxes. What was the average time taken to build a bird box? ☐ ☐ ✓ ✗
Check

This is Time Arithmetic level 4. You can also try:
Level 1 Level 2 Level 3 Level 5

## Instructions

Try your best to answer the questions above. Type your answers into the boxes provided leaving no spaces. As you work through the exercise regularly click the "check" button. If you have any wrong answers, do your best to do corrections but if there is anything you don't understand, please ask your teacher for help.

When you have got all of the questions correct you may want to print out this page and paste it into your exercise book. If you keep your work in an ePortfolio you could take a screen shot of your answers and paste that into your Maths file.

## More Activities:

Mathematicians are not the people who find Maths easy; they are the people who enjoy how mystifying, puzzling and hard it is. Are you a mathematician?

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"This resource has made a great deal of difference to the standard of starters for all of our lessons. Thank you for being so creative and imaginative."

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"A really awesome website! Teachers and students are learning in such a fun way! Keep it up..."

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#### Four Colour Theorem

This mathematical activity involves colouring in! That makes a change. Using the paint bucket tool can you flood fill the regions so that no two adjacent regions are the same colour?

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Subscribers can manage class lists, lesson plans and assessment data in the Class Admin application and have access to reports of the Transum Trophies earned by class members.

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## Go Maths

Learning and understanding Mathematics, at every level, requires learner engagement. Mathematics is not a spectator sport. Sometimes traditional teaching fails to actively involve students. One way to address the problem is through the use of interactive activities and this web site provides many of those. The Go Maths page is an alphabetical list of free activities designed for students in Secondary/High school.

## Maths Map

Are you looking for something specific? An exercise to supplement the topic you are studying at school at the moment perhaps. Navigate using our Maths Map to find exercises, puzzles and Maths lesson starters grouped by topic.

## Teachers

If you found this activity useful don't forget to record it in your scheme of work or learning management system. The short URL, ready to be copied and pasted, is as follows:

Alternatively, if you use Google Classroom, all you have to do is click on the green icon below in order to add this activity to one of your classes.

It may be worth remembering that if Transum.org should go offline for whatever reason, there is a mirror site at Transum.info that contains most of the resources that are available here on Transum.org.

When planning to use technology in your lesson always have a plan B!

Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for those learning Mathematics anywhere in the world. Click here to enter your comments.

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Scan the QR code below to visit the online version of this activity.

https://www.Transum.org/go/?Num=910

## Description of Levels

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Telling the Time - This might be a good place to start if you need help understanding the basics.

Level 2 - Subtraction

Level 3 - Multiplication

Level 4 - Division

Level 5 - Mixed

Train Timetables - Practise your time arithmetic skills with this real-life application.

More Time Resources including lesson Starters, visual aids, investigations and self-marking exercises.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

## Curriculum Reference

See the National Curriculum page for links to related online activities and resources.

## Example

You may also want to use a calculator to check your working. See Calculator Workout skill 12.

Don't wait until you have finished the exercise before you click on the 'Check' button. Click it often as you work through the questions to see if you are answering them correctly. You can double-click the 'Check' button to make it float at the bottom of your screen.

Answers to this exercise are available lower down this page when you are logged in to your Transum account. If you don’t yet have a Transum subscription one can be very quickly set up if you are a teacher, tutor or parent.

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