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Taya2010 [7]
3 years ago
6

Why do you add a zero when multiplying two digits by two digits

Mathematics
1 answer:
malfutka [58]3 years ago
6 0
When you add a zero to the problem, it shows you are now multiplying in the double-digits. Let's say you are multiplying 12x12. First you cover up the one then multiply them. Then cover up the two and you have 10. When you multiply them, it ends in a zero. Don't think of it as adding a zero but adding to products.
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