Question: Write a how-many-units-in-1-group word problem for 1 2 3 4 = ? and use your problem and a math drawing to explain why it makes
Write a how-many-units-in-1-group word problem for 1 2 3 4 = ? and use your problem and a math drawing to explain why it makes sense to solve 1 2 3 4 by "inverting and multiplying"in other words, by multiplying 1 2 by 4 3
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