Transum Software

Rounding to 2 Significant Figures

Practise your rounding skills with this self marking exercise.

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

This is level 5; Rounding numbers to two significant figures. You can earn a trophy if you get at least 17 correct.

29.81

Correct Wrong

68.67

Correct Wrong

8.872

Correct Wrong

525.6

Correct Wrong

3752

Correct Wrong

5643

Correct Wrong

39810

Correct Wrong

22430

Correct Wrong

641200

Correct Wrong

316900

Correct Wrong

0.6761

Correct Wrong

0.4141

Correct Wrong

0.08846

Correct Wrong

0.03987

Correct Wrong

0.003525

Correct Wrong

0.001915

Correct Wrong

6951000

Correct Wrong

39450000

Correct Wrong

0.0001975

Correct Wrong

0.0007922

Correct Wrong

0.0007986

Correct Wrong

Check

This is 'Rounding to 2 Significant Figures'. You can also try rounding to:
Whole number 1 decimal place 2 decimal places 1 sig fig 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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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 12 July 'Starter of the Day' page by Miss J Key, Farlingaye High School, Suffolk:

"Thanks very much for this one. We developed it into a whole lesson and I borrowed some hats from the drama department to add to the fun!"

Comment recorded on the 19 October 'Starter of the Day' page by E Pollard, Huddersfield:

"I used this with my bottom set in year 9. To engage them I used their name and favorite football team (or pop group) instead of the school name. For homework, I asked each student to find a definition for the key words they had been given (once they had fun trying to guess the answer) and they presented their findings to the rest of the class the following day. They felt really special because the key words came from their own personal information."

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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

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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