3 ms·
Same here. I read through the first 10 or so and hadn't heard or been taught any of them. Is it a particular US thing? (British here for reference)
by iamflimflam1 11y ago
Same here. I read through the first 10 or so and hadn't heard or been taught any of them. Is it a particular US thing? (British here for reference)
- OTmath 11y agoMostly North American. If you're interested, these videos explain and discuss each "trick" in more detail: https://www.youtube.com/watch?v=1gxLwLBl4mM&index=4&list=PLAmlm9_MPQMSJ4kRHofj7xkJN1aqmGuQ8 https://www.youtube.com/watch?v=1gxLwLBl4mM&index=4&list=PLA... It's a work in progress...