Friday, 7 September 2018

Reversibilty, dont subtract, add.



This is what we have been doing in room three
and for me it has made maths a lot easier.  We have been practising the strategy reversibility  - don't subtract add.


(The Math Problem)

Teone saves $536 to buy a new dvd player . The dvd player is $899.
How much does Teone need to save up to buy a dvd player.
   $536 + $363 =$899            $899 - $363 = $536. 

3 comments:

  1. Hi Darby I think you understand your reversibility really well.

    ReplyDelete
  2. Hi Darby I am Corey from Kaingaora shcool from the far north.
    What a hard maths question I think I may not be able to work that out.
    I hope to see you on my blog. Thanks!

    ReplyDelete
  3. Hi Darby I think you understand your reversibility really well.

    ReplyDelete

Thank you for your positive, thoughtful, helpful comments. 
Positive - something I have done well.
Thoughtful - a sentence or more that  lets me know you that you read/watched or listened to what I had to say.
Helpful - please give me some ideas for next time or ask a question you want to know more about.