13th Birthday Gift 13 Years Old Square Root of 169 T-shirt-mt

Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester, Imported, Machine wash cold with like colors, dry low heat, T-Shirt: Funny 13th birthday math, algebra, mathematics, science, .. gift shirt. The square root of 169 is 13 years old. Perfect 13yrs anniversary present for every math geek, math teacher, calculator freak, science boy or girl.. born in 2005. Simple, funny humor, sarcastic, .. b-day gift idea for yourself and for people you love: friend, mother, father, sister, aunt, uncle, mom, dad, toddlers, kids, … Great gift in addition with other bday present like coffee mugs, square root birthday shirt. Lightweight, Classic fit, Double-needle sleeve and bottom hem
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