kimkani kimkani
  • 03-12-2017
  • Mathematics
contestada

Show how to make one addend the next tens number. 22+49=?

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W0lf93
W0lf93 W0lf93
  • 15-12-2017
The one addend technique is the act of breaking up numbers to make even tens. 22+49 can be broken up into 21+49+1 and then added to make 21+50 and then these numbers can be more easily added to make 71.
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