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Originally posted by the
Yeah, I think it's just the first step of teaching the concept of grouping (probably not the right word) to get the correct answer. They are just multiplying the 10s first.
62 x 6 = 360.
Then later they'll do the 6 x 2 = 12, and 12 + 360 = 372, the correct answer.
Whether that's effective for a 2nd grader, I don't know, but I think at least there's a rational thought process going on by the teacher/school, not an attempt to teach "fuzzy math."
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I can't tell you how many times I've seen situations where it would have been useful if someone had taught this before. People who have no concept of the appropriate 'neighborhood' of an answer would come up with answers that were way off. Multiple decimal points off.
Teaching this was irrelevant before calculators and computers, but is probably pretty useful now. It would be in my world.