1DP

POM 76.38

GOSH 319.40

SNOD 3.70

NIGGLE 5.04

BODGIT 930.75

LIP 991

SOOP 4.393

FLIRT 3.205

DIDUMS 0.0065

DILLY-DALLY 636.960

Round each of the numbers on the signs to 1 decimal place then add all of your answers together.

Rounding to 1 Decimal Place

A Mathematics Lesson Starter Of The Day


Share

Topics: Starter | Approximation | Arithmetic | Rounding

  • Mr. MacLeod's Grade 7 Class, St. Stephens Catholic School- Valleyview Alberta
  •  
  • My Grade 7 class would like to be able to use a calculator to save time on this question, but they did enjoy it.
  • Transum,
  •  
  • Even the most confident pupils might hesitate when you ask them to round -37.25 to one decimal place. Do you know the answer? Are you sure? Have a look at the extension activity below then let us know what you think.

How did you use this starter? Can you suggest how teachers could present or develop this resource? Do you have any comments? It is always useful to receive feedback and helps make this free resource even more useful for Maths teachers anywhere in the world.
Click here to enter your comments.

If you don't have the time to provide feedback we'd really appreciate it if you could give this page a score! We are constantly improving and adding to these starters so it would be really helpful to know which ones are most useful. Simply click on a button below:

Excellent, I would like to see more like this
Good, achieved the results I required
Satisfactory
Didn't really capture the interest of the students
Not for me! I wouldn't use this type of activity.

This starter has scored a mean of 3.0 out of 5 based on 211 votes.


Previous Day | This starter is for 20 February | Next Day

 

Answers

Pom 76.4

Gosh 319.4

Snod 3.7

Niggle 5.0

Bodgit 930.8

Lip 991.0

Soop 4.4

Flirt 3.2

Didums 0.0

Dilly-Dally 637.0

2970.9

Would you have got the same answer if you had added all of the original numbers together then rounded off the answer?

Note to teacher: Doing this activity once with a class helps students develop strategies. It is only when they do this activity a second time that they will have the opportunity to practise those strategies. That is when the learning is consolidated. Click the button above to regenerate another version of this starter from random numbers.



Extension

Do you know how to round negative numbers? If values exactly half way between get rounded up should -37.25 be rounded to -37.2 or -37.3? Does ‘rounded up’ mean rounded to the larger value or the value furthest away from zero?

A system of rounding commonly used in bookkeeping and some computing procedures is called ‘round half to even’. In this system half way values are rounded either up or down in order to make the last digit an even number.

So, for example, 37.25 becomes 37.2, 37.15 also becomes 37.2 and −37.25 becomes −37.2 without any doubt.

This method of rounding is also useful when rounding values in large data sets as it evens out the rounding ups and rounding downs for the half way values.


Access to the majority of the Transum resources continues to be free but you can help support the continued growth of the website by doing your Amazon shopping using the links on this page. Below is an Amazon search box and some items chosen and recommended by Transum Mathematics to get you started.

Graphic Display Calculator

This handheld device and companion software are designed to generate opportunities for classroom exploration and to promote greater understanding of core concepts in the mathematics and science classroom. TI-Nspire technology has been developed through sound classroom research which shows that "linked multiple representation are crucial in development of conceptual understanding and it is feasible only through use of a technology such as TI-Nspire, which provides simultaneous, dynamically linked representations of graphs, equations, data, and verbal explanations, such that a change in one representation is immediately reflected in the others.

For the young people in your life it is a great investment. Bought as a gift for a special occasion but useful for many years to come as the young person turns into an A-level candidate then works their way through university. more...

iPad Air

The analytics show that more and more people are accessing Transum Mathematics via an iPad as it is so portable and responsive. The iPad has so many other uses in addition to solving Transum's puzzles and challenges and it would make an excellent gift for anyone.

You have to hold iPad Air to believe it. It’s just 7.5 millimeters thin and weighs just one pound. The stunning Retina display sits inside thinner bezels, so all you see is your content. And an incredible amount of power lies inside the sleek enclosure. So you can do so much more. With so much less. more...

Before giving an iPad as a gift you could add a link to iPad Maths to the home screen.

Click the images above to see all the details of these items and to buy them online.


Laptops In Lessons

Teacher, do your students have access to computers?
Do they have iPads or Laptops in Lessons?

Whether your students each have a TabletPC, a Surface or a Mac, this activity lends itself to eLearning (Engaged Learning).

Laptops In Lessons

Here a concise URL for a version of this page without the comments.

Transum.org/go/?Start=February20

Here is the URL which will take them to a related student activity.

Transum.org/go/?to=RoundingDP

 

 


Apple

©1997-2017 WWW.TRANSUM.ORG