lulu97
lulu97
01-05-2016
Mathematics
contestada
what is 9×9 please help me
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Danko
Danko
01-05-2016
9x9 is 81. It is easy because 9x9=9+9+9+9+9+9+9+9+9. As you can see, that is 9 added 9 times.
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