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Yep, makes sense to me. Another way to look at is by mental math is 48 + 30 = 78 and 78 +4 = 82 but I think the way you stated it is even more intuitive.
If it's not mental math, I would have students discuss the merits of how left to right works part of the time? How about the traditional algorithmic way right to left (place values)?
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