Video: Cool Trick for Squaring Numbers Ending in 5

Yes, another stupid party trick for you to enjoy. Numbers ending in 5 have a unique method of squaring them. Let’s unpack the trick and as always, I’ll show you why it is true.

Corey Rasmussen

Corey is the Managing Director of the Mentored Engineer and owner of Rasmussen Designs. He received his BSME from Baylor University and holds a professional engineering license in North Carolina and Texas. He has been an engineer since 2002 with extensive experience in engineering design, fabrication and troubleshooting. He specializes in mobile equipment, hydraulic systems and machine design. He has two patents

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