математик 1 р анги цахим хичээл

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    20-Aug-2015

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  1. 1. 1-
  2. 2. : ,
  3. 3. : , ,
  4. 4. 10-1= 10+2= 11+1= 12-1=13+2= 13-1= 14-2= 15-1=16+1= 17-2= 13+3= 18+1=
  5. 5. , .
  6. 6. .
  7. 7. ,. 1 . ?
  8. 8. 3 1 ? - = ?
  9. 9. .
  10. 10. .15 18 9 10 1720
  11. 11. ..