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MissTica
3 years ago
11

What is another strategy that you can use to multiply 2 digit by 2 digit numbers?

Mathematics
1 answer:
ipn [44]3 years ago
8 0

You may write them separating the units and tens digits, and then use FOIL to add 4 easy tems. For example, let's compute 21\cdot 36:

21\cdot 36=(20+1)(30+6)=600+120+30+6 = 756

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