Struggling with the nine times table? I have a failsafe method (www.theguardian.com)

submitted 5 days ago by Aatube@lemmy.dbzer0.com to c/nottheonion@lemmy.world

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Apparently, nines are the hardest to grasp for primary school children. If only they’d learned how to cheat like me, says Adrian Chiles

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[-] BradleyUffner@lemmy.world 3 points 3 days ago* (last edited 3 days ago)

9s have always been easy for me. Subtract 1 from the other number to get the first digit of the answer, the second digit is whatever digit you would add to the first to make 9.

For 9x6
6-1=5
5+4=9
So the answer is 54.

It happens so fast in my head that I barely even have to think about it.

[-] Sylvartas@lemmy.dbzer0.com 2 points 3 days ago

I just did X*10-X

6x9 = 60, 60-6= 54.

this post was submitted on 23 May 2026

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