29:(2-9)=-29:7=-4 1/3
8.3x5.2+4.8x8.3=8.3(5.2+4.8)=8.3*10=83
36x1400-40x360=36(1400-40*10)=36(1400-400)=36*1000=36000
29:(2-9)=-29:7=-4 1/3
8.3x5.2+4.8x8.3=8.3(5.2+4.8)=8.3*10=83
36x1400-40x360=36(1400-40*10)=36(1400-400)=36*1000=36000