15*18+40*32+25*18= (15+25)*(18+32) = 2000
15*18=270
40*32=1280
25*18=450
270+4560+1280=2000
Ответ 2000
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15*18+40*32+25*18= (15+25)*(18+32) = 2000
15*18=270
40*32=1280
25*18=450
270+4560+1280=2000
Ответ 2000