Transum Software

Cracked Clock Quiz

Try saying that ten times quickly!

A ten question mathematical quiz about the numbers on a standard clock face.

Cracked Clock Quiz Large Clock More Time Activities More Puzzles

You can earn a trophy if you get at least 7 questions correct and you do this activity online.

1. What do all of the numbers on a clock face add up to?

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2. If the clock face broke into two pieces and the total of the numbers on each piece was the same, what other number would be on the piece containing the 11, 12, 1 , 2 and 3?

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3. If the clock face broke into three pieces and the total of the numbers on each piece was the same, what would that total be?

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4. Could the clock face break into four pieces with the total of the numbers on each piece the same? Yes or no?

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5. Could the clock face break into five pieces with the total of the numbers on each piece the same? Yes or no?

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6. Could the clock face break into six pieces with the total of the numbers on each piece the same? Yes or no?

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7. What do all of the odd numbers on a clock face add up to?

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8. What do all of the even numbers on a clock face add up to?

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9. What do all of the prime numbers on a clock face add up to?

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10. One of the numbers dropped off a clock face. The total of the numbers left was greater than 71 and a prime number. Which number dropped off?

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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.

Transum.org

This web site contains over a thousand free mathematical activities for teachers and pupils. Click here to go to the main page which links to all of the resources available.

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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?

Comment recorded on the 23 September 'Starter of the Day' page by Judy, Chatsmore CHS:

"This triangle starter is excellent. I have used it with all of my ks3 and ks4 classes and they are all totally focused when counting the triangles."

Comment recorded on the 28 September 'Starter of the Day' page by Malcolm P, Dorset:

"A set of real life savers!!
Keep it up and thank you!"

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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:

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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