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2014-10-03T15:34:35+03:00
2014-10-03T15:51:09+03:00
5+5=10;6+5=11(al 7 le-a termea); 7+5=12.....etc...9+5=14 al 10 lea termen....24+5=29 al 25 le-a termen ;5+7=12;6+8=14;7+9=15 ( al 7 le-a termen).....10+12=22 al 10 le-a termen.....20+22=42 al 25 le-a termen
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