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I would expect any good teacher to get his or her students to understand that That's not how I've seen it used. I've seen it used as a procedure for getting t
by dhimes 16y ago
I would expect any good teacher to get his or her students to understand that
That's not how I've seen it used. I've seen it used as a procedure for getting the answer. Compare that to the method shown in the npr link, first line: the numerals are 2 and 3, but the numbers multiplied 20 and 30. That's what I mean by teaching place value.
In the the old-school method I learned, we respected place-value by indenting (from the right), optionally writing the zeros.