aspruill09 aspruill09
  • 20-04-2020
  • Mathematics
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What is another strategy that you can use to multiply 2 digit by 2 digit numbers?

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Аноним Аноним
  • 20-04-2020

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

[tex]21\cdot 36=(20+1)(30+6)=600+120+30+6 = 756[/tex]

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