October 21, 2019 – Սարգսյան Դավիթ բլոգ

մաթեմատիկա

Posted on October 21, 2019December 22, 2019 by davitsargsyan8

585+585=1170

1170-585=585

82844+7258=90102

90102-82844-7258

9999+55=100-54

10054-55=9999

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