jediah
jediah jediah
  • 07-04-2016
  • Mathematics
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howto multiply 30 times 30 HELP

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apologiabiology
apologiabiology apologiabiology
  • 07-04-2016
30=3 times 10 right so
30 times 30=3 times 10 times 3 times 10=3 times 3 times 10 times 10
we know that 3 timmes 3=9
and 10 times 10 is 100
so 30 times 30=9 times 100=900
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kelpel197
kelpel197 kelpel197
  • 07-04-2016
Here is a way I was thought with zeroes, first do 3x3 which is 9 then since there are 2 zeroes you tack on 2 zeroes at the end to get 900. Hope this helped.
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