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Imagine a world with no hundreds place. We’d have to call it ten tens instead. But then, what would we call the thousands place? How would we read 9999? What if we added one more?
- Students decide how they'll read 340, 621, 835, and 999 if there were no "hundreds" place.
- Students predict how to read 999 + 1.
- Students predict how to read 9999 and 10000.
- Students learn that in other cultures, people do indeed [group their larger numbers differently](https://en.wikipedia.org/wiki/Japanese_numerals#Large_numbers).
