 
<translate> Robie juru igbe 2 + 5 = 7 n'ozuzu ya. Ya mere, o nwere 7 x 10 = 70 kaadị hockey site na igbe 7. Ya mere, o nwere ngụkọta nke kaadị 70 + 5 = 75 ná mmalite. Azịza ya bụ: 75. <eng> Robie filled a total of 2 + 5 = 7 boxes. So, he had 7 x 10 = 70 hockey cards from the 7 boxes. Thus, he had a total of 70 + 5 = 75 cards in the beginning.
The answer: 75. 