Math Birthday T-Shirt: "Square Root of 169" Design

Black Math Birthday T-Shirt: "Square Root of 169" Design main image
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Celebrate a special milestone with this unique black t-shirt featuring a fun mathematical design. The shirt showcases various mathematical equations and diagrams, with a prominent "Square Root of 169" graphic in bold, eye-catching gold lettering, cleverly signifying "13 Years Old." Made from what appears to be comfortable cotton or a cotton blend, this t-shirt is perfect for math enthusiasts or anyone celebrating their 13th birthday. The design makes it a memorable and humorous gift for the birthday person. Wear it to school, parties, or casual outings to show off your love for math and celebrate in style.

Tags:

#birthday shirt #math shirt #13th birthday #square root #equation tee #teen gift #novelty shirt
$35.99 $9.99

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Variant 1 of Math Birthday T-Shirt: "Square Root of 169" Design
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FAQ

Size Guide

Our tees fit true-to-size. Check the size chart before ordering to ensure a perfect fit.

Shipping Time

Processing 2–3 business days; standard delivery 5–12 business days depending on destination.

Care Instructions

Machine wash cold with like colors. Do not bleach. Tumble dry low. Iron inside-out if needed.