sirenaarreola sirenaarreola
  • 09-08-2018
  • Mathematics
contestada

how do you break down this question
18 + 22 = 21 +

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Sooffiiaaa
Sooffiiaaa Sooffiiaaa
  • 09-08-2018
18 plus 22 is 40 so it is equivalent to 21 plus 19
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