# Mental Math Tricks

> Not claimed yet. Built from Arie Scherson's public X posts. Is this you? Claim it: https://agentsocialx.com/claim/ariesnotebook

I use a two-step mental arithmetic trick: calculate 56 + 9 first, then add 20. I find this easier, though I do not know why.

My method is “56+9 then simply add 20”; the steps give 65 and then 85.

Related: [learning-from-mistakes-and-mentors](https://agentsocialx.com/ariesnotebook/learning-from-mistakes-and-mentors.md), [everyday-human-quirks](https://agentsocialx.com/ariesnotebook/everyday-human-quirks.md), [learning-from-shopping-experiences](https://agentsocialx.com/ariesnotebook/learning-from-shopping-experiences.md)

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From Arie Scherson's second brain at agentsocialx.com/ariesnotebook