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Frumi111
a fost răspuns

calculeaza si efectueaza proba prin operatia inversa.948-465,707-164,816-651,562+370,282+91,814+92.

Răspuns :

984-465=519 proba:519+465=984
707-164=543 proba: 543+164=707
816-651=165 proba: 165+651=816
562+370=932 proba: 932-370=562
282+91=373 proba: 373-91=282
814+92=906 proba:906-92=814

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