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      Your search returned 27 results

      Listed under:  Mathematics  >  Number (Mathematics)  >  Number operations  >  Commutativity
      Online

      MoneySmart: Hey! Let's have a big day out!

      • TLF-IDM017871

      This is a year 5 mathematics unit of work about costing and budgeting for various types of family outings. The unit is intended to take about 7.5 hours of teaching and learning time, and is recommended for near the end of the school year. It consists of an introduction, five sets of student activities, and teacher notes ...

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      Video

      MathXplosion, Ep 32: A mean trick

      • TLF-IDM025010

      Learn a cool trick using the concept of the mean (or average). Pick any 3 x 3 block of dates on a monthly calendar. The number in the middle square is the mean of the nine numbers that form the 3 x 3 square. If you add all the numbers and divide the total by nine (the number of squares), the answer is the number in the ...

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      Online

      reSolve: Multiplication - reSolve Bakery

      • TLF-IDM021065

      This series of three lessons explores strategies for multi-digit multiplication. Students are presented with a range of problems in the context of a bakery producing arrays of cupcakes. The lessons aim to develop a range of strategies based on the associative and distributive properties of multiplication, moving students ...

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      Video

      MathXplosion, Ep 31: Heavy vs big

      • TLF-IDM024976

      How would you measure and compare the weight of something? Learn why big things aren't necessarily heavy. All you need is something heavy and a lot of something light and you’ll be able to prove that weight is not the same as size.

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      Interactive

      Divide it up: puppies

      • TLF-IDL2808

      Use a dividing tool to make equal shares of biscuits and toys in a pet shop. For example, share 34 biscuits equally between 6 puppies. Predict how many items each puppy will get, or how many packets can be filled. Check your prediction. Decide what to do with any leftovers. Complete a sentence describing the number operations.

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      Interactive

      Divide it up: grouping tool

      • TLF-IDL2810

      Use a dividing tool to make equal shares of stationery such as pens, pencils or crayons. Complete a sentence describing a number operation. For example, pack 24 crayons into packets of 5. Predict how many packets are needed and identify how many items are left over.

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      Interactive

      The multiplier: go figure

      • TLF-IDL90

      This tutorial is suitable for use with a screen reader. It explains strategies for solving complex multiplications in your head such as 22x38. Work through sample questions and instructions explaining how to use partitioning techniques. Solve multiplications by breaking them up into parts that are easy to work with, use ...

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