Eleventh of the Eleventh

Divide each of these numbers by eleven in your head.

55
33
198
275
154
231
198
33

Convert each of your answers to a letter and make a word (A=1, B=2 etc).

Also add up all of your answers and multiply the sum by eleven in your head.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26

A Mathematics Lesson Starter Of The Day


Share

Topics: Starter | Arithmetic | Mental Methods

  • Transum,
  •  
  • The eleven times table has always been very easy to learn up to 9 x 11. Here's a way of multiplying large numbers by 11 too:
    Example:
    Q. What is 324 x 11 ?
    A. Write down the first digit ... 3
    .......Add the first and second digits ... 3 + 2 = 5
    .......Add the second and third digits .. 2 + 4 = 6
    .......Write down the last digit ........... 4
    The answer is 3564.
    Try it yourself ... multiply 543 by 11
    Do you know why it works?
    Does it work for all three digit numbers?
  • Anna, Dorchester, St Birinus CE Primary
  •  
  • So what's the word?

    [Transum: Scroll down the page to see the answer]

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 3.1 out of 5 based on 417 votes.


Previous Day | This starter is for 11 November | Next Day

 

Answers

CURRENCY

1177

Notes for the teacher:

1. You can drag the numbers in the animation above and they will stop moving. Your pupils may prefer a stationary Starter rather than trying to keep track of the moving numbers.

2. It might be necessary to do the Eleven In Your Head activity first (the link is can also be found further down this page) before pupils are able to see the patterns and appreciate the place value significance.

3. 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 below to regenerate another version of this starter with a different word.



Your 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.

 

Online Maths Shop

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=November11

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

Transum.org/go/?to=eleven

Student Activity


Curriculum Reference

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

Eleven
Apple

©1997-2019 WWW.TRANSUM.ORG