Tap / click on image to see more RealViewsTM
Sale Price $14.44.  
Original Price $18.05 Comp. value 
per shirt
You save 20%
2 + 2 = 10 T-Shirt
Qty:
Style
Basic Dark T-Shirt
-$1.05
+$7.45
Color & Print Process
Black
Vivid Printing: White Underbase 
About T-Shirts
Sold by 
About This Design
2 + 2 = 10 T-Shirt
There is an arbitrary number of numbering systems.  The most familiar is Base-10 (decimal).  Computer science uses Base-16 (hexadecimal), Base-8 (octal), and Base-2 (binary).  Base-4 consists of numbers from 0 to 3.  Adding 1 to 3 give 0 plus "carry the one", i.e. "10".  Adding 2 to 2, gives the same result: 10.  Further cement to your family and friends that you are truly a geek, by showing that you can do math in an arbitrary numbering system.
Customer Reviews
4.7 out of 5 stars rating31.5K Total Reviews
31,479 Reviews
Reviews for similar products
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#).  The 8yo is small framed.  She wore adult small and tied it in the back.  Dark haired male wore adult large and 5’9”, 110# female wore adult medium . Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt.   Not too thick or thin. Washed and dried well, no major shrinkage.  Not see-through.  Can wear a bra under it fine.  Screen print is just as shown and well done, front and back. 
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#).  The 8yo is small framed.  She wore adult small and tied it in the back.  Grandma wore adult large with long sleeve shirt underneath.  Tall girl adult medium.  Dark haired male adult large.  Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt.   Not too thick or thin. Washed and dried well, no major shrinkage.  Not see-through.  Can wear a bra under it fine.  Screen print is just as shown and well done, front and back. 
5 out of 5 stars rating
By Jenny S.September 9, 2025 • Verified Purchase
Value T-Shirt, Black, Adult S
My 11 yo wore adult XL (5’7” 165#).  The 8yo is small framed.  She wore adult small and tied it in the back.  Dark haired male wearing adult large and female wearing adult medium.  Good quality dark Heather gray, Gildan brand shirt. -it was next up from basic choice and cost about $20 per shirt.   Not too thick or thin. Washed and dried well, no major shrinkage.  Not see-through.  Can wear a bra under it fine.  Screen print is just as shown and well done, front and back.  They printed random cupcake image I downloaded from internet with no problems!  Looked perfect!  Front design was stock from zazzel. 
Tags
Other Info
Product ID: 235205256089821029
Created on: 3/12/2011, 6:55 AM
Rating: G 
Recently Viewed Items