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Divisibility By Eleven
Consider for example:
Is 647053 divisible by 11 ?
Simply keeping on subtracting the unit’s digit from the number ( without units digit)
64705 – 3 = 64702
6470 – 2 = 6468
646 – 8 = 638
63 – 8 = 55
5 – 5 =0 or multiple of 11
If you get 0 or multiple of 11, then the given number is divisible by 11 .
This method also gives you quotient.
To find quotient, move from bottom ( keep on recording the unit’s digit)
58823 is quotient.
Posted in Mathematics, Speed Mathematics
Tagged Divisibility, Divisibilityby11, fastmaths, MathEducation, Mathisfun, mathsblog, Speed Maths
Motivation
” Dream! dream! dream! Dream transforms into thought and thought results into action. ” – Dr. A.P.J Abdul Kalam
Posted in Motivation
Tagged Dream, Dreams, DrKalam, GuruKalam, Motivation, Motivation