don steward
mathematics teaching 10 ~ 16

Sunday, 19 December 2010

multiples of 36

Using 5, 6 and 7 as three digits of a four digit multiple of 36,

find the largest and also the smallest (4-digit) number.

[you should find that the difference between them is 4680]

Can you also find a multiple of 36 with three 8s in it?

[ this problem was posed by Tony Gardiner ]

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