mariaper73haoocom mariaper73haoocom
  • 15-12-2016
  • Mathematics
contestada

explain why you should récord a 1 in the tens columna when you regreso in an addition problem

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maddog89824
maddog89824 maddog89824
  • 15-12-2016
i would say that if the ones add up to 10 or more, they will regroup and put a 1 above the tens column to show the 10.
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