+78

For any multiple of nine, the one's place digit will always be ten minus the one's place digit of the factor other than nine. amirite?

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Impolsions avatar Psychology
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What a convoluted way of teaching multiples of 9 lol.

teknogreeks avatar teknogreek Yeah You Are +5Reply
@teknogreek What a convoluted way of teaching multiples of 9 lol.

Lol it's just a realization beyond the regular "counting by nine" and divisibility stuff.

Impolsions avatar Impolsion Yeah You Are +3Reply

I think you mean other than zero, rather than other than nine.

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