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A Maths Starter of The Day

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Keywords: Starter | Arithmetic

  • Mike Moon, Royds School Leeds
  • Sunday, November 02, 2008
  • "I got 173 from 8 x 11 + 5 x 16 + 5"
  • Hardip Sahota, Ernesford Grange, Coventry
  • Wednesday, November 26, 2008
  • "I did 15 x 14 = 210 then subtract 3 = 207"
  • The Best Class Ever (8cd/m2), King Alfred's College OXON
  • Monday, November 02, 2009
  • "This starter was a nice one to start with for our class. We had two attempts at this one, because somebody shouted out the first answer within 2 seconds(James!!!!!!!!!)
    The sums we had were 49 (which was easy) and 262 (which took longer to do).
    It was a good starter."
  • Chloe Tovell,
  • Monday, November 09, 2009
  • "I got 226 (one out) by
    8x7=56 then
    16+18x5=170 finally
    56+170=226.
    i really liked this starter of the day and would like to see more like this!"
  • Ember, Huddersfield
  • Tuesday, November 17, 2009
  • "I had 1008. Numnbers were 1 4 1 18 14. Gives good practice on estimation.20 x 10 x 4 is 1000 take it from there. Finally got there with 18 x 14 x 4 + 1 - 1. It was the last bit that was perplexing. 'Can you do that? questions."

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This starter has scored a mean of 3.3 out of 5 based on 41 votes.
 

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Answer

One possible solution is

2 x 12 + 2(17 - 8) = 42

Are there any others?

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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.

The blue cards with numbers on can be dragged around the screen when considering different possibilities.