- Squaring two digit numbers in your head (blog.jgc.org)
All my life I’ve done mental arithmetic the ‘wrong way’: I’ve calculated from left-to-right, instead of right-to-left. So when I do something like 24 + 35 I’ll see the 50 first and then the 9. This even applies when there’s a carry and I’ll do something like 36 + 56 as 80 + 12. I do the same thing for multiplication as well.
- Reptile (Wikipedia)
Reptiles, in common parlance, are a group of tetrapods with an ectothermic (‘cold-blooded’) metabolism and amniotic development. Living reptiles comprise four orders: Testudines (turtles), Crocodilia (crocodilians), Squamata (lizards and snakes), and Rhynchocephalia (the tuatara). As of May 2023, about 12,000 living species of reptiles are listed in the Reptile Database. The study of the traditional reptile orders, customarily in combination with the study of modern amphibians, is called herpetology.