Rounding to 1 Significant FigurePractise your rounding skills with this self marking exercise. 
This is level 4; Rounding numbers to one significant figure. You can earn a trophy if you get at least 17 correct.
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
InstructionsTry 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.orgThis 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. 
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? Comment recorded on the 9 May 'Starter of the Day' page by Liz, Kuwait: "I would like to thank you for the excellent resources which I used every day. My students would often turn up early to tackle the starter of the day as there were stamps for the first 5 finishers. We also had a lot of fun with the fun maths. All in all your resources provoked discussion and the students had a lot of fun." Comment recorded on the 26 March 'Starter of the Day' page by Julie Reakes, The English College, Dubai: "It's great to have a starter that's timed and focuses the attention of everyone fully. I told them in advance I would do 10 then record their percentages." 


AnswersThere 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. If you would like to enjoy adfree access to the thousands of Transum resources, receive our monthly newsletter, unlock the printable worksheets and see our Maths Lesson Finishers then sign up for a subscription now: Subscribe 

Go MathsLearning 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 MapAre 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. TeachersIf 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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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
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.
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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."