Quandaries
and Queries
3rd Grade math-- question
4x7 = 28
How many arrays can this have?
How do you determine the arrays???
Jan
Hi Jan,
Since this is a grade 3 question I expect that what is wanted is the number of ways you can arrange 28 squares into a rectangular array. For example you have
4
7 = 28
which I see as
Arithematically the task is to write 28 as a product of
integers in as many ways as possible. The number of arrays is 12 if you
agree that 7 4 = 28 gives
a different array than the one above.
Penny