Summer Clouds moderators
23/06/2017 at 19:39-
Phạm Đức Mạnh 24/06/2017 at 09:39this is my key( 1000 / 10 ) / 10 + 1 = 100
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Multiples of 5 have 0 or 5 as its last digit,so even multiples of 5 have 0 as its last digit.The number of even multiples of 5 which are between 1 and 1000 is : (990 - 10) : 10 + 1 = 99
