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Results tagged with preschool-education
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user 13034
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How to answer a three-year-old the question "Why is $2+6$ the same as $4+4$"?
Start with two equations that are the same in every way, like this:
2 + 2 = 4 and 2 + 2 = 4
Now, add "4" more to each of the two equations, one at a time, so you'll get 8 in each equation. But do it …
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