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Question
Which is true about the algorithm for decimal multiplication?a) Students can discover the method by being given a series of multiplication problems with factors that have the same digits, but decimals in different places.
b) It is too complicated for students to discover on their own, so they should just explicitly be shown how to do it.
c) They should be shown how to estimate after they are shown the algorithm.
d) The repeated addition strategy that works for whole number multiplication is not applicable.
Answer
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