From Anand Mahindra to Shahrukh Khan, this clip of a clever multiplication hack has impressed all Twitterati, as some go on to credit it with solving their 'life's issues'. Anand Mahindra took to Twitter to share a video in which a teacher demonstrates how to multiply any number by nine quickly and easily. All the method requires is counting on your fingers.
"Whaaaat? I didn't know about this clever shortcut. Wish she had been MY math teacher. I probably would have been a lot better at the subject!" Mahindra tweeted.

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