Timmy
Hi, I’m Timmy. Let’s get stuff done!
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HumanCalculator
finished
30m timer
2020-12-25T03:34:51Z
Plan:
Set up other approximation trainer modalities and place on website.
Result:
All done! The completed trainer is available here—feedback welcome.
worldmentalcalculation.com/gym/estimating-multiplications-and-divisions/