People love to make fun of this common core stuff ("derp derp the teachers are so dumb"), but refactoring is actually a super-useful technique if I'm asked to add 98 + 81, I'll refactor to 100 + 79 = 179. https://twitter.com/mnrothbard/status/998487314354655232 …
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That’s always been my issue with it. The shortcuts just get kids lost if they don’t already have a solid grasp of the basic techniques. And this stuff seems to be trying to substitute the shortcuts for the basics.
End of conversation
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