Shadow Sums

Make 3 sums from the numbers given.

Drag the numbers onto the shadows to make 3 sums.

+
+
+
+
+

133

246

116

210

281

158

300

188

215

117

268

107

108

141

213

495

649

703

492

462

A Mathematics Lesson Starter Of The Day


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Topics: Starter | Arithmetic | Place Value | Problem Solving

  • 10y4, Dagenham
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  • We found this quite easy but the class enjoyed it.
  • 7O, Lord Lawson
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  • We found this very hard!
  • Mrs O'Hagan's Firs yr class, Holyrood Sec School Glasgow
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  • We found this starter quite hard..and as we were given it for homework we were disappointed that as it was still the same day, the numbers were changed
  • Mr Shaw, Beaulieu Convent Jersey Year 9
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  • We found this easier if we worked in teams. It took us 10 minutes to find our first answer.
  • KGo, AHHC
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  • My Year 10s enjoyed this and thought more of these would be great.
  • 7f1, John Port School
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  • We enjoyed this task very much. It was challenging sorting out the problem but fun!
  • Mr. G, Beacon Community College, Crowborough
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  • A very good activity to encourage creative thinking. The first student to find a sum (Brandon Lawrence) did it after 5 trials and within 10 minutes on his own. Most of the students were happy to do this activity.
  • Lizzie Lucas, Holcombe Brook Y5
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  • I think that there should be more of this on the website because it is good fun,me and my mum found it very easy with a little help from dad.
  • Miss Hope, Castle Rushen High School
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  • We found this a bit of a challenge after starting off with different numbers making one of the totals. We got there in the end, after we took Robert's recommendation (We are in y13, age 17 :) ).
  • Jack And Mrs Williams, 9PJH
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  • Very difficult but we cracked it! fun challenge.
  • Jay, Ramsden Hall School
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  • Its okay but we found it confusing.
  • Senan, Barnes Primary Year 6
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  • I really liked this problem. it took me about 3 minutes and I found it quite fun. I would like more of this sort of thing.
  • P6/7s, Craiglockhart Primary, Edinburgh
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  • Our P6/7's (10/11 year olds) did this as a warm up to our Maths lesson. First solution found in 5 minutes.We found it fairly challenging but really got us thinking! We all enjoyed it.
  • St Mark's School,
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  • Challenging but fun. My Year 5 class managed to complete this in 8 minutes. Team work helps!

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.
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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 402 votes.


Previous Day | This starter is for 13 November | Next Day

 

Answers

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.



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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=November13

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

Transum.org/go/?to=Sums

Student Activity

 


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