garciarigoberto8465 garciarigoberto8465
  • 04-07-2018
  • Social Studies
contestada

By the age of ____ years, most children have learned the addition tables so well that the sums of single digit numbers can be retrieved from memory rather than recalculated.

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brigat444
brigat444 brigat444
  • 04-07-2018
Im going to go with 7 years old
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