form a multiplication sum
in an attempt to find the largest product (result) that can be obtained
an intention is that students try out (on paper) one 4 by 1 digit multiplication and also one 3 by 2 digit multiplication
then they could use a calculator to speed up an exploration of other options - but this might miss out on an understanding of how the 'partial products' contribute
the various (close) options can be considered in an expanded form to see where there are advantages.
the largest is 22, 412 for the first five digits
larger (and smaller) versions of the task can also be explored:
(thanks to Colin Foster for his convenient collection)
and patterns/general formats explored:
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