25+72+25 52+18+12 17+34+19 61+12-23= = = = = = = = 37-16+28 65+11-12 56-37+21 72÷9-8= = = == = = =38-25-11 48-22-21 87-35-49 5×6+20= = = == = = =29+6×7 44+8×3 31+4×6 48÷6+9 = = = == = = = 3×5+47 6×8+90 9+5×7 49÷7-5= = = == = = = 51+56÷7 26+68×6 85+57×6 52+69×7 = = = = = = = =103+13×4 55+71×3 87+26×3 75+35×5 = = = = = = = =55+37×3 86+17×3 26+26×2 78+87×3= = = = = = = = 23+52×7 90+56×3 99+27×3 77+81×9 = = = = = = = = 88+28×3 99+28×3 77+29×3 76+38×3= = = = = = = = 66+27×2 99+29×2 66+85×6 = = = = = =66+38×6 22+39×6 88+37×1 = = = = = = 22+30×6 25+32×3 77+28×3 = = == = =99+72×2 55+36×3 66+88×3 = = = = = = 88+35×3 121+63×6 55+86×3 = = = = = = 77+26×2 33+43×6 111+29×3 = = = = = = 55+38×6 33+69×3 = = = =。