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There are a few ways to determine if a multiplication fact is correct:

  1. Repeated addition: since multiplication is simply repeated addition at its base, you can reaffirm a multiplication fact by repeatedly adding the number you're multiplying. With the basic multiplication facts (i.e. times tables), this is possibly the best option.
  2. Division: Since it's simply the reverse of multiplication, then you can just reverse the process to confirm it.
  3. Using multiple methods: There are multiple ways to do multiplication than just the usual long multiplication done in school, such as lattice multiplication, and Ayurvedic multiplication (just to name the two I know). You can use these to confirm a multiplication.
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โˆ™ 2011-05-24 02:11:07
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Q: How do you know that a multiplication fact is correct?
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How do you know if a multiplication fact is correct?

You can use a calculator to verify your multiplication numbers. Google is also a valuable resource for any math related questions.


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