815+85+126 = 900+126=1026
63+749+81247+65251 = 81310+66000 = 147310
(67318+25976)+64024 = 67318+(25976+64024) = 67318+90000 = 157318
348712+(613+51288) = (348712+51288)+613=400000+613 = 400613
6318*25+3682*25 = (6318+3682)*25 = 10000*25 = 250000
4000*26+500*26 = 4000*26+13000 = 13*(4000*2+1000) = 13*(4000*2+1000) = 13*9000 = 117000
35*18*6*5 = 35*2*9*30 = 70*270 = 7*27*100 = 18900
4*68*250 = 68*1000 = 68000
70*(80*100) = 7*10*8*10*100 = 7*8*10000 = 560000
(200*18)*5 = 200*18*5 = 18*5*200 = 18*1000 = 18000
(750+250)*8 = 1000*8 = 8000
(225+300)*4 = (200+25+300)*4 = (500+25)*4 = 500*4+25*4 = 2000+100=2100
815+85+126 = 900+126=1026
63+749+81247+65251 = 81310+66000 = 147310
(67318+25976)+64024 = 67318+(25976+64024) = 67318+90000 = 157318
348712+(613+51288) = (348712+51288)+613=400000+613 = 400613
6318*25+3682*25 = (6318+3682)*25 = 10000*25 = 250000
4000*26+500*26 = 4000*26+13000 = 13*(4000*2+1000) = 13*(4000*2+1000) = 13*9000 = 117000
35*18*6*5 = 35*2*9*30 = 70*270 = 7*27*100 = 18900
4*68*250 = 68*1000 = 68000
70*(80*100) = 7*10*8*10*100 = 7*8*10000 = 560000
(200*18)*5 = 200*18*5 = 18*5*200 = 18*1000 = 18000
(750+250)*8 = 1000*8 = 8000
(225+300)*4 = (200+25+300)*4 = (500+25)*4 = 500*4+25*4 = 2000+100=2100