Number (mult/div)
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Grade 5

Multiplication and division using groups (15x15)


Groups are a great way to see what we are doing when we

  • multiply - or work out how many items we have altogether, or
  • divide - when we share.  

Using groups in this video, we also look at how multiplication and division are related.



Solve problems involving the addition, subtraction, and multiplication of whole numbers, using a variety of mental strategies (e.g., use the commutative property: 5 x 18 x 2 = 5 x 2 x 18, which gives 10 x 18 = 180)

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