natito1 natito1
  • 04-12-2015
  • Mathematics
contestada

show how you can use doubles to solve 7+8

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Аноним Аноним
  • 04-12-2015
i can use doubles to solve 7+8 by asking myself what is 8+8 and that equals 16. Then i ask myself what is 7+7 and that equals 14. Then i know i am using 7 and 8, so i think about what is in between 16 and 14. 15 is between those numbers so the answer is 15.
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