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Retro Funny 7th Birthday Math Nerd Gift for Kids Sweatshirt

4.7 out of 5 stars rating
34520 Total Reviews |
by
Qty:
Style
Basic Sweatshirt
-$12.75
-$12.75
-$14.15
-$3.00
Color & Print Process
Black
Classic Printing: No Underbase
-$5.80
-$3.45
-$3.45
-$3.45
Vivid Printing: White Underbase

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About T-Shirts

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Style: Men's Basic Sweatshirt

Brave any outdoor activity in the comfort of this classic crewneck sweatshirt. It’s both plush and durable in its construction – a true staple for any wardrobe that will last. Select a design from our marketplace or customize it to make it your own!

Size & Fit

  • Model is 6’0” and wearing a medium
  • Standard fit
  • Fits true to size

Fabric & Care

  • 10oz. cotton-poly blend with a 100% cotton face
  • Set-in sleeves and double-needle stitched neckline, armholes and bottom band for long-term durability
  • Imported
  • Machine wash cold. Tumble dry low.

About This Design

Retro Funny 7th Birthday Math Nerd Gift for Kids Sweatshirt

Retro Funny 7th Birthday Math Nerd Gift for Kids Sweatshirt

Celebrate a smart and fun birthday milestone with this clever “√49 Years Old” math birthday design. Since the square root of 49 equals 7, this design is perfect for someone turning 7 years old who loves numbers, math, science, puzzles, school, learning, or nerdy birthday humor. Featuring a chalkboard-inspired background filled with equations, graphs, geometry, formulas, and classroom-style details, this design makes a fun and memorable gift for 7th birthdays, math-loving kids, STEM students, young science fans, homeschool students, classroom celebrations, birthday boys, birthday girls, and party gift ideas. This design works beautifully across Zazzle products including t-shirts, hoodies, sweatshirts, mugs, birthday cards, invitations, stickers, posters, tote bags, keychains, magnets, buttons, phone cases, party favor tags, and birthday decorations. It is a great choice for parents, grandparents, teachers, and family members looking for a clever educational birthday gift.
Trendy_Birthday
Bronze
Artwork designed by
Manhattan, New York
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Customer Reviews

4.7 out of 5 stars rating34.5K Total Reviews
27056 total 5-star reviews5252 total 4-star reviews1177 total 3-star reviews532 total 2-star reviews503 total 1-star reviews
34,520 Reviews
Reviews for similar products
5.0 out of 5 stars rating
5 out of 5 stars rating
By Pavel T.March 19, 2018 • Verified Purchase
Basic Sweatshirt, White, Large
Creator Review
Overall very high quality , nice and neat. The fabric feels very comfy, durable yet very natural. The print itself is very detailed (black is not 100% black, but that's OK). 99 out of 100.
5.0 out of 5 stars rating
5 out of 5 stars rating
By Gordon G.March 4, 2026 • Verified Purchase
Basic Sweatshirt, Black, Small
As ordered. Good job.
5.0 out of 5 stars rating
5 out of 5 stars rating
By Nancy H.November 25, 2025 • Verified Purchase
Basic Sweatshirt, White, Large
Absolutely awesome. I love everything about this sweatshirt! It's color, design, the message about JOY from Snoopy, Peanuts Woodstock. I really like having a Men's basic sweatshirt, white, adult L! .

Tags

T-Shirts
square root 49sqrt 497 years old7th birthdayseventh birthdayfunny 7th birthdaymath birthday giftmath birthdaymath nerd giftstem birthday gift
All Products
square root 49sqrt 497 years old7th birthdayseventh birthdayfunny 7th birthdaymath birthday giftmath birthdaymath nerd giftstem birthday gift

Other Info

Product ID: 235725779395519347
Created on: 9/10/2021, 3:36 PM
Rating: G