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Showing posts with label MATHS TRICKS. Show all posts
Showing posts with label MATHS TRICKS. Show all posts
Saturday, 6 February 2016
Friday, 22 January 2016
ASTONISHING DIVISION RULE FOR 9
If a number is divisible by nine the sum of its digits is divisible by 9.
EXAMPLE.
Sum of the digit
8+9+1+6+3+4+5 = 36
36/9 = 4
number 8916345 is divisible by 9
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