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CALCULEAZA. FA PROBA PRIN OPERATIA INVERSA. 45+24;18+30;45+3;96+2;43+20;57+37;

Răspuns :

Răspuns:

45+24=69.proba 69-24=45

18+30=48. Proba 48-30=18

45+3=48.proba 48-3=45

96+2=98.proba 98-2=96

43+20=63.proba 63-20=43

57+37=94.proba 94-37=57