Transum Software

Rounding to 1 Significant Figure

Practise your approximation and rounding skills with this online, self-marking exercise.

Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Description Help More...

This is level 4; Rounding numbers to one significant figure. You can earn a trophy if you get at least 17 correct.

51.81

Correct Wrong

57.78

Correct Wrong

2.374

Correct Wrong

384.6

Correct Wrong

7268

Correct Wrong

1169

Correct Wrong

78440

Correct Wrong

26850

Correct Wrong

453700

Correct Wrong

169700

Correct Wrong

0.2561

Correct Wrong

0.7739

Correct Wrong

0.06953

Correct Wrong

0.03897

Correct Wrong

0.006564

Correct Wrong

0.005335

Correct Wrong

2444000

Correct Wrong

35330000

Correct Wrong

0.0003537

Correct Wrong

0.0004656

Correct Wrong

0.0001231

Correct Wrong

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This is 'Rounding to 1 Significant Figure'. You can also try rounding to:
Whole number 1 decimal place 2 decimal places 2 sig figs 3 sig figs Ten, hundred etc

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.

Please contact me if you have any suggestions or questions.

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"Really good site. Lots of good ideas for starters. Use it most of the time in KS3."

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Answers

There are answers to this exercise but they are available in this space to teachers, tutors and parents who have logged in to their Transum subscription on this computer.

A Transum subscription unlocks the answers to the online exercises, quizzes and puzzles. It also provides the teacher with access to quality external links on each of the Transum Topic pages and the facility to add to the collection themselves.

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:

Ole Frehr, Denmark

Wednesday, August 12, 2015

"I just found your web page with the online quiz with three significant figures. It's great! Thank you for putting it online! I think my students will enjoy it."

Miss Molinga,

Friday, March 16, 2018

"Love your game thank you."

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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Description of Levels

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Level 1 - Rounding numbers to the nearest whole number

Level 2 - Rounding numbers to one decimal place

Level 3 - Rounding numbers to two decimal places

Level 4 - Rounding numbers to one significant figure

Level 5 - Rounding numbers to two significant figures

Level 6 - Rounding numbers to three significant figures

Level 7 - Rounding numbers to the nearest ten, hundred etc

More on this topic 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.

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Curriculum Reference

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

Rounding Videos

Rounding to decimal places: A straight forward explanation from SLEP about how to round a number to a given number of decimal places.

Rounding to significant figures: Another video from SLEP but this one is about rounding to a given number of significant figures.

Significant figures: CGP Maths Tutor explain what 'significant figures' means, then talks you through some examples. A video tutorial.

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.

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